diff --git a/src/ex_cmds.h b/src/ex_cmds.h
index 1c19562..9ae85f0 100644
--- a/src/ex_cmds.h
+++ b/src/ex_cmds.h
@@ -47,13 +47,14 @@
 #define EX_BUFUNL     0x10000	// accepts unlisted buffer too
 #define EX_ARGOPT     0x20000	// allow "++opt=val" argument
 #define EX_SBOXOK     0x40000	// allowed in the sandbox
-#define EX_CMDWIN     0x80000	// allowed in cmdline window; when missing
-				// disallows editing another buffer when
-				// curbuf_lock is set
+#define EX_CMDWIN     0x80000	// allowed in cmdline window
 #define EX_MODIFY    0x100000	// forbidden in non-'modifiable' buffer
 #define EX_FLAGS     0x200000	// allow flags after count in argument
 #define EX_RESTRICT  0x400000	// forbidden in restricted mode
 #define EX_EXPAND    0x800000	// expands wildcards later
+#define EX_LOCK_OK  0x1000000	// command can be executed when textlock is
+				// set; when missing disallows editing another
+				// buffer when curbuf_lock is set
 
 #define EX_FILES (EX_XFILE | EX_EXTRA)	// multiple extra files allowed
 #define EX_FILE1 (EX_FILES | EX_NOSPC)	// 1 file, defaults to current file
@@ -109,13 +110,13 @@
 #endif
 {
 EXCMD(CMD_append,	"append",	ex_append,
-	EX_BANG|EX_RANGE|EX_ZEROR|EX_TRLBAR|EX_CMDWIN|EX_MODIFY,
+	EX_BANG|EX_RANGE|EX_ZEROR|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_abbreviate,	"abbreviate",	ex_abbreviate,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_abclear,	"abclear",	ex_abclear,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_aboveleft,	"aboveleft",	ex_wrongmodifier,
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
@@ -124,10 +125,10 @@
 	EX_BANG|EX_RANGE|EX_COUNT|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_amenu,	"amenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_anoremenu,	"anoremenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_args,		"args",		ex_args,
 	EX_BANG|EX_FILES|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
@@ -154,16 +155,16 @@
 	EX_BANG|EX_RANGE|EX_COUNT|EX_EXTRA|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_ARGUMENTS),
 EXCMD(CMD_ascii,	"ascii",	do_ascii,
-	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_autocmd,	"autocmd",	ex_autocmd,
-	EX_BANG|EX_EXTRA|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_augroup,	"augroup",	ex_autocmd,
-	EX_BANG|EX_WORD1|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_WORD1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_aunmenu,	"aunmenu",	ex_menu,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_buffer,	"buffer",	ex_buffer,
 	EX_BANG|EX_RANGE|EX_BUFNAME|EX_BUFUNL|EX_COUNT|EX_EXTRA|EX_CMDARG|EX_TRLBAR,
@@ -175,13 +176,13 @@
 	EX_RANGE|EX_COUNT|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_badd,		"badd",		ex_edit,
-	EX_NEEDARG|EX_FILE1|EX_CMDARG|EX_TRLBAR|EX_CMDWIN,
+	EX_NEEDARG|EX_FILE1|EX_CMDARG|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_bdelete,	"bdelete",	ex_bunload,
 	EX_BANG|EX_RANGE|EX_BUFNAME|EX_COUNT|EX_EXTRA|EX_TRLBAR,
 	ADDR_BUFFERS),
 EXCMD(CMD_behave,	"behave",	ex_behave,
-	EX_BANG|EX_NEEDARG|EX_WORD1|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_NEEDARG|EX_WORD1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_belowright,	"belowright",	ex_wrongmodifier,
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
@@ -208,22 +209,22 @@
 	EX_BANG|EX_RANGE|EX_CMDARG|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_break,	"break",	ex_break,
-	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_breakadd,	"breakadd",	ex_breakadd,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_breakdel,	"breakdel",	ex_breakdel,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_breaklist,	"breaklist",	ex_breaklist,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_browse,	"browse",	ex_wrongmodifier,
-	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_CMDWIN,
+	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_buffers,	"buffers",	buflist_list,
-	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_bufdo,	"bufdo",	ex_listdo,
 	EX_BANG|EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_RANGE|EX_DFLALL,
@@ -235,7 +236,7 @@
 	EX_BANG|EX_RANGE|EX_BUFNAME|EX_BUFUNL|EX_COUNT|EX_EXTRA|EX_TRLBAR,
 	ADDR_BUFFERS),
 EXCMD(CMD_change,	"change",	ex_change,
-	EX_BANG|EX_WHOLEFOLD|EX_RANGE|EX_COUNT|EX_TRLBAR|EX_CMDWIN|EX_MODIFY,
+	EX_BANG|EX_WHOLEFOLD|EX_RANGE|EX_COUNT|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_cNext,	"cNext",	ex_cnext,
 	EX_RANGE|EX_COUNT|EX_TRLBAR|EX_BANG,
@@ -244,10 +245,10 @@
 	EX_RANGE|EX_COUNT|EX_TRLBAR|EX_BANG,
 	ADDR_UNSIGNED),
 EXCMD(CMD_cabbrev,	"cabbrev",	ex_abbreviate,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_cabclear,	"cabclear",	ex_abclear,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_cabove,	"cabove",	ex_cbelow,
 	EX_RANGE|EX_COUNT|EX_TRLBAR,
@@ -265,10 +266,10 @@
 	EX_RANGE|EX_COUNT|EX_TRLBAR,
 	ADDR_UNSIGNED),
 EXCMD(CMD_call,		"call",		ex_call,
-	EX_RANGE|EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_RANGE|EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_catch,	"catch",	ex_catch,
-	EX_EXTRA|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_cbuffer,	"cbuffer",	ex_cbuffer,
 	EX_BANG|EX_RANGE|EX_WORD1|EX_TRLBAR,
@@ -289,13 +290,13 @@
 	EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_cd,		"cd",		ex_cd,
-	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_cdo,		"cdo",		ex_listdo,
 	EX_BANG|EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_RANGE|EX_DFLALL,
 	ADDR_QUICKFIX_VALID),
 EXCMD(CMD_center,	"center",	ex_align,
-	EX_TRLBAR|EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_MODIFY,
+	EX_TRLBAR|EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_cexpr,	"cexpr",	ex_cexpr,
 	EX_NEEDARG|EX_WORD1|EX_NOTRLCOM|EX_BANG,
@@ -319,13 +320,13 @@
 	EX_NEEDARG|EX_WORD1|EX_NOTRLCOM,
 	ADDR_NONE),
 EXCMD(CMD_chdir,	"chdir",	ex_cd,
-	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_changes,	"changes",	ex_changes,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_checkpath,	"checkpath",	ex_checkpath,
-	EX_TRLBAR|EX_BANG|EX_CMDWIN,
+	EX_TRLBAR|EX_BANG|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_checktime,	"checktime",	ex_checktime,
 	EX_RANGE|EX_BUFNAME|EX_COUNT|EX_EXTRA|EX_TRLBAR,
@@ -334,25 +335,25 @@
 	EX_RANGE|EX_COUNT|EX_TRLBAR,
 	ADDR_UNSIGNED),
 EXCMD(CMD_clist,	"clist",	qf_list,
-	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_clast,	"clast",	ex_cc,
 	EX_RANGE|EX_COUNT|EX_TRLBAR|EX_BANG,
 	ADDR_UNSIGNED),
 EXCMD(CMD_close,	"close",	ex_close,
-	EX_BANG|EX_RANGE|EX_COUNT|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_RANGE|EX_COUNT|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_WINDOWS),
 EXCMD(CMD_clearjumps,	"clearjumps",	ex_clearjumps,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_cmap,		"cmap",		ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_cmapclear,	"cmapclear",	ex_mapclear,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_cmenu,	"cmenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_cnext,	"cnext",	ex_cnext,
 	EX_RANGE|EX_COUNT|EX_TRLBAR|EX_BANG,
@@ -364,40 +365,40 @@
 	EX_RANGE|EX_COUNT|EX_TRLBAR|EX_BANG,
 	ADDR_UNSIGNED),
 EXCMD(CMD_cnoremap,	"cnoremap",	ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_cnoreabbrev,	"cnoreabbrev",	ex_abbreviate,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_cnoremenu,	"cnoremenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_copy,		"copy",		ex_copymove,
-	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_MODIFY,
+	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_colder,	"colder",	qf_age,
 	EX_RANGE|EX_COUNT|EX_TRLBAR,
 	ADDR_UNSIGNED),
 EXCMD(CMD_colorscheme,	"colorscheme",	ex_colorscheme,
-	EX_WORD1|EX_TRLBAR|EX_CMDWIN,
+	EX_WORD1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_command,	"command",	ex_command,
-	EX_EXTRA|EX_BANG|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_BANG|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_comclear,	"comclear",	ex_comclear,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_compiler,	"compiler",	ex_compiler,
-	EX_BANG|EX_TRLBAR|EX_WORD1|EX_CMDWIN,
+	EX_BANG|EX_TRLBAR|EX_WORD1|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_continue,	"continue",	ex_continue,
-	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_confirm,	"confirm",	ex_wrongmodifier,
-	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_CMDWIN,
+	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_const,	"const",	ex_let,
-	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_copen,	"copen",	ex_copen,
 	EX_RANGE|EX_COUNT|EX_TRLBAR,
@@ -421,43 +422,43 @@
 	EX_BANG|EX_TRLBAR|EX_WORD1,
 	ADDR_NONE),
 EXCMD(CMD_cunmap,	"cunmap",	ex_unmap,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_cunabbrev,	"cunabbrev",	ex_abbreviate,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_cunmenu,	"cunmenu",	ex_menu,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_cwindow,	"cwindow",	ex_cwindow,
 	EX_RANGE|EX_COUNT|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_delete,	"delete",	ex_operators,
-	EX_RANGE|EX_WHOLEFOLD|EX_REGSTR|EX_COUNT|EX_TRLBAR|EX_CMDWIN|EX_MODIFY,
+	EX_RANGE|EX_WHOLEFOLD|EX_REGSTR|EX_COUNT|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_delmarks,	"delmarks",	ex_delmarks,
-	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_debug,	"debug",	ex_debug,
-	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_debuggreedy,	"debuggreedy",	ex_debuggreedy,
-	EX_RANGE|EX_ZEROR|EX_TRLBAR|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_def,		"def",		ex_function,
-	EX_EXTRA|EX_BANG|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_BANG|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_defcompile,	"defcompile",	ex_defcompile,
-	EX_SBOXOK|EX_CMDWIN|EX_TRLBAR,
+	EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_delcommand,	"delcommand",	ex_delcommand,
-	EX_NEEDARG|EX_WORD1|EX_TRLBAR|EX_CMDWIN,
+	EX_NEEDARG|EX_WORD1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_delfunction,	"delfunction",	ex_delfunction,
-	EX_BANG|EX_NEEDARG|EX_WORD1|EX_CMDWIN,
+	EX_BANG|EX_NEEDARG|EX_WORD1|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_display,	"display",	ex_display,
-	EX_EXTRA|EX_NOTRLCOM|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_diffupdate,	"diffupdate",	ex_diffupdate,
 	EX_BANG|EX_TRLBAR,
@@ -481,28 +482,28 @@
 	EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_digraphs,	"digraphs",	ex_digraphs,
-	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_disassemble,	"disassemble",	ex_disassemble,
-	EX_EXTRA|EX_NEEDARG|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_NEEDARG|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_djump,	"djump",	ex_findpat,
 	EX_BANG|EX_RANGE|EX_DFLALL|EX_WHOLEFOLD|EX_EXTRA,
 	ADDR_LINES),
 EXCMD(CMD_dlist,	"dlist",	ex_findpat,
-	EX_BANG|EX_RANGE|EX_DFLALL|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN,
+	EX_BANG|EX_RANGE|EX_DFLALL|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_doautocmd,	"doautocmd",	ex_doautocmd,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_doautoall,	"doautoall",	ex_doautoall,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_drop,		"drop",		ex_drop,
 	EX_FILES|EX_CMDARG|EX_NEEDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_dsearch,	"dsearch",	ex_findpat,
-	EX_BANG|EX_RANGE|EX_DFLALL|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN,
+	EX_BANG|EX_RANGE|EX_DFLALL|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_dsplit,	"dsplit",	ex_findpat,
 	EX_BANG|EX_RANGE|EX_DFLALL|EX_WHOLEFOLD|EX_EXTRA,
@@ -511,64 +512,64 @@
 	EX_BANG|EX_FILE1|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_earlier,	"earlier",	ex_later,
-	EX_TRLBAR|EX_EXTRA|EX_NOSPC|EX_CMDWIN,
+	EX_TRLBAR|EX_EXTRA|EX_NOSPC|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_echo,		"echo",		ex_echo,
-	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_echoerr,	"echoerr",	ex_execute,
-	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_echohl,	"echohl",	ex_echohl,
-	EX_EXTRA|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_echomsg,	"echomsg",	ex_execute,
-	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_echon,	"echon",	ex_echo,
-	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_else,		"else",		ex_else,
-	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_elseif,	"elseif",	ex_else,
-	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_emenu,	"emenu",	ex_emenu,
-	EX_NEEDARG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_RANGE|EX_CMDWIN,
+	EX_NEEDARG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_RANGE|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_endif,	"endif",	ex_endif,
-	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_enddef,	"enddef",	ex_endfunction,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_endfunction,	"endfunction",	ex_endfunction,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_endfor,	"endfor",	ex_endwhile,
-	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_endtry,	"endtry",	ex_endtry,
-	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_endwhile,	"endwhile",	ex_endwhile,
-	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_enew,		"enew",		ex_edit,
 	EX_BANG|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_eval,		"eval",		ex_eval,
-	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_ex,		"ex",		ex_edit,
 	EX_BANG|EX_FILE1|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_execute,	"execute",	ex_execute,
-	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_exit,		"exit",		ex_exit,
-	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_FILE1|EX_ARGOPT|EX_DFLALL|EX_TRLBAR|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_FILE1|EX_ARGOPT|EX_DFLALL|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_export,	"export",	ex_export,
 	EX_EXTRA|EX_NOTRLCOM,
@@ -580,10 +581,10 @@
 	EX_RANGE|EX_ZEROR|EX_BANG|EX_FILE1|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_files,	"files",	buflist_list,
-	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_filetype,	"filetype",	ex_filetype,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_filter,	"filter",	ex_wrongmodifier,
 	EX_BANG|EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
@@ -592,22 +593,22 @@
 	EX_RANGE|EX_BANG|EX_FILE1|EX_CMDARG|EX_ARGOPT|EX_TRLBAR|EX_NEEDARG,
 	ADDR_OTHER),
 EXCMD(CMD_finally,	"finally",	ex_finally,
-	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_finish,	"finish",	ex_finish,
-	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_first,	"first",	ex_rewind,
 	EX_EXTRA|EX_BANG|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_fixdel,	"fixdel",	do_fixdel,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_fold,		"fold",		ex_fold,
-	EX_RANGE|EX_WHOLEFOLD|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_foldclose,	"foldclose",	ex_foldopen,
-	EX_RANGE|EX_BANG|EX_WHOLEFOLD|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_RANGE|EX_BANG|EX_WHOLEFOLD|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_folddoopen,	"folddoopen",	ex_folddo,
 	EX_RANGE|EX_DFLALL|EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
@@ -616,19 +617,19 @@
 	EX_RANGE|EX_DFLALL|EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
 	ADDR_LINES),
 EXCMD(CMD_foldopen,	"foldopen",	ex_foldopen,
-	EX_RANGE|EX_BANG|EX_WHOLEFOLD|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_RANGE|EX_BANG|EX_WHOLEFOLD|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_for,		"for",		ex_while,
-	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_function,	"function",	ex_function,
-	EX_EXTRA|EX_BANG|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_BANG|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_global,	"global",	ex_global,
-	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_EXTRA|EX_DFLALL|EX_SBOXOK|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_EXTRA|EX_DFLALL|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_goto,		"goto",		ex_goto,
-	EX_RANGE|EX_COUNT|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_RANGE|EX_COUNT|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_grep,		"grep",		ex_make,
 	EX_RANGE|EX_BANG|EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_TRLBAR|EX_XFILE,
@@ -637,10 +638,10 @@
 	EX_RANGE|EX_BANG|EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_TRLBAR|EX_XFILE,
 	ADDR_OTHER),
 EXCMD(CMD_gui,		"gui",		ex_gui,
-	EX_BANG|EX_FILES|EX_CMDARG|EX_ARGOPT|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_FILES|EX_CMDARG|EX_ARGOPT|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_gvim,		"gvim",		ex_gui,
-	EX_BANG|EX_FILES|EX_CMDARG|EX_ARGOPT|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_FILES|EX_CMDARG|EX_ARGOPT|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_help,		"help",		ex_help,
 	EX_BANG|EX_EXTRA|EX_NOTRLCOM,
@@ -655,85 +656,85 @@
 	EX_EXTRA|EX_NOTRLCOM|EX_NEEDARG,
 	ADDR_NONE),
 EXCMD(CMD_helptags,	"helptags",	ex_helptags,
-	EX_NEEDARG|EX_FILES|EX_TRLBAR|EX_CMDWIN,
+	EX_NEEDARG|EX_FILES|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_hardcopy,	"hardcopy",	ex_hardcopy,
 	EX_RANGE|EX_COUNT|EX_EXTRA|EX_EXPAND|EX_TRLBAR|EX_DFLALL|EX_BANG,
 	ADDR_LINES),
 EXCMD(CMD_highlight,	"highlight",	ex_highlight,
-	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_hide,		"hide",		ex_hide,
 	EX_BANG|EX_RANGE|EX_COUNT|EX_EXTRA|EX_TRLBAR,
 	ADDR_WINDOWS),
 EXCMD(CMD_history,	"history",	ex_history,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_insert,	"insert",	ex_append,
-	EX_BANG|EX_RANGE|EX_TRLBAR|EX_CMDWIN|EX_MODIFY,
+	EX_BANG|EX_RANGE|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_iabbrev,	"iabbrev",	ex_abbreviate,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_iabclear,	"iabclear",	ex_abclear,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_if,		"if",		ex_if,
-	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_ijump,	"ijump",	ex_findpat,
 	EX_BANG|EX_RANGE|EX_DFLALL|EX_WHOLEFOLD|EX_EXTRA,
 	ADDR_LINES),
 EXCMD(CMD_ilist,	"ilist",	ex_findpat,
-	EX_BANG|EX_RANGE|EX_DFLALL|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN,
+	EX_BANG|EX_RANGE|EX_DFLALL|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_imap,		"imap",		ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_imapclear,	"imapclear",	ex_mapclear,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_imenu,	"imenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_import,	"import",	ex_import,
 	EX_EXTRA|EX_NOTRLCOM,
 	ADDR_NONE),
 EXCMD(CMD_inoremap,	"inoremap",	ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_inoreabbrev,	"inoreabbrev",	ex_abbreviate,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_inoremenu,	"inoremenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_intro,	"intro",	ex_intro,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_isearch,	"isearch",	ex_findpat,
-	EX_BANG|EX_RANGE|EX_DFLALL|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN,
+	EX_BANG|EX_RANGE|EX_DFLALL|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_isplit,	"isplit",	ex_findpat,
 	EX_BANG|EX_RANGE|EX_DFLALL|EX_WHOLEFOLD|EX_EXTRA,
 	ADDR_LINES),
 EXCMD(CMD_iunmap,	"iunmap",	ex_unmap,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_iunabbrev,	"iunabbrev",	ex_abbreviate,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_iunmenu,	"iunmenu",	ex_menu,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_join,		"join",		ex_join,
-	EX_BANG|EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN|EX_MODIFY,
+	EX_BANG|EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_jumps,	"jumps",	ex_jumps,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_k,		"k",		ex_mark,
-	EX_RANGE|EX_WORD1|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_RANGE|EX_WORD1|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_keepmarks,	"keepmarks",	ex_wrongmodifier,
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
@@ -748,7 +749,7 @@
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
 	ADDR_NONE),
 EXCMD(CMD_list,		"list",		ex_print,
-	EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_lNext,	"lNext",	ex_cnext,
 	EX_RANGE|EX_COUNT|EX_TRLBAR|EX_BANG,
@@ -763,7 +764,7 @@
 	EX_RANGE|EX_COUNT|EX_TRLBAR,
 	ADDR_UNSIGNED),
 EXCMD(CMD_language,	"language",	ex_language,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_laddexpr,	"laddexpr",	ex_cexpr,
 	EX_NEEDARG|EX_WORD1|EX_NOTRLCOM,
@@ -778,7 +779,7 @@
 	EX_RANGE|EX_COUNT|EX_TRLBAR,
 	ADDR_UNSIGNED),
 EXCMD(CMD_later,	"later",	ex_later,
-	EX_TRLBAR|EX_EXTRA|EX_NOSPC|EX_CMDWIN,
+	EX_TRLBAR|EX_EXTRA|EX_NOSPC|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_lbuffer,	"lbuffer",	ex_cbuffer,
 	EX_BANG|EX_RANGE|EX_WORD1|EX_TRLBAR,
@@ -793,10 +794,10 @@
 	EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_lcd,		"lcd",		ex_cd,
-	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_lchdir,	"lchdir",	ex_cd,
-	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_lclose,	"lclose",	ex_cclose,
 	EX_RANGE|EX_COUNT|EX_TRLBAR,
@@ -808,13 +809,13 @@
 	EX_BANG|EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_RANGE|EX_DFLALL,
 	ADDR_QUICKFIX_VALID),
 EXCMD(CMD_left,		"left",		ex_align,
-	EX_TRLBAR|EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_MODIFY,
+	EX_TRLBAR|EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_leftabove,	"leftabove",	ex_wrongmodifier,
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
 	ADDR_NONE),
 EXCMD(CMD_let,		"let",		ex_let,
-	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_lexpr,	"lexpr",	ex_cexpr,
 	EX_NEEDARG|EX_WORD1|EX_NOTRLCOM|EX_BANG,
@@ -856,19 +857,19 @@
 	EX_RANGE|EX_COUNT|EX_TRLBAR|EX_BANG,
 	ADDR_UNSIGNED),
 EXCMD(CMD_llist,	"llist",	qf_list,
-	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_lmap,		"lmap",		ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_lmapclear,	"lmapclear",	ex_mapclear,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_lmake,	"lmake",	ex_make,
 	EX_BANG|EX_EXTRA|EX_NOTRLCOM|EX_TRLBAR|EX_XFILE,
 	ADDR_NONE),
 EXCMD(CMD_lnoremap,	"lnoremap",	ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_lnext,	"lnext",	ex_cnext,
 	EX_RANGE|EX_COUNT|EX_TRLBAR|EX_BANG,
@@ -883,13 +884,13 @@
 	EX_FILE1|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_loadkeymap,	"loadkeymap",	ex_loadkeymap,
-	EX_CMDWIN,
+	EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_lockmarks,	"lockmarks",	ex_wrongmodifier,
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
 	ADDR_NONE),
 EXCMD(CMD_lockvar,	"lockvar",	ex_lockvar,
-	EX_BANG|EX_EXTRA|EX_NEEDARG|EX_SBOXOK|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_NEEDARG|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_lolder,	"lolder",	qf_age,
 	EX_RANGE|EX_COUNT|EX_TRLBAR,
@@ -910,16 +911,16 @@
 	EX_TRLBAR|EX_BANG|EX_WORD1,
 	ADDR_NONE),
 EXCMD(CMD_lunmap,	"lunmap",	ex_unmap,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_lua,		"lua",		ex_lua,
-	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_luado,	"luado",	ex_luado,
-	EX_RANGE|EX_DFLALL|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_DFLALL|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_luafile,	"luafile",	ex_luafile,
-	EX_RANGE|EX_FILE1|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_FILE1|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_lvimgrep,	"lvimgrep",	ex_vimgrep,
 	EX_RANGE|EX_BANG|EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_TRLBAR|EX_XFILE,
@@ -931,40 +932,40 @@
 	EX_RANGE|EX_COUNT|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_ls,		"ls",		buflist_list,
-	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_move,		"move",		ex_copymove,
-	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_MODIFY,
+	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_mark,		"mark",		ex_mark,
-	EX_RANGE|EX_WORD1|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_RANGE|EX_WORD1|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_make,		"make",		ex_make,
 	EX_BANG|EX_EXTRA|EX_NOTRLCOM|EX_TRLBAR|EX_XFILE,
 	ADDR_NONE),
 EXCMD(CMD_map,		"map",		ex_map,
-	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_mapclear,	"mapclear",	ex_mapclear,
-	EX_EXTRA|EX_BANG|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_BANG|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_marks,	"marks",	ex_marks,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_match,	"match",	ex_match,
-	EX_RANGE|EX_EXTRA|EX_CMDWIN,
+	EX_RANGE|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_menu,		"menu",		ex_menu,
-	EX_RANGE|EX_ZEROR|EX_BANG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_BANG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_menutranslate, "menutranslate", ex_menutranslate,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_messages,	"messages",	ex_messages,
-	EX_EXTRA|EX_TRLBAR|EX_RANGE|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_RANGE|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_mkexrc,	"mkexrc",	ex_mkrc,
-	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_mksession,	"mksession",	ex_mkrc,
 	EX_BANG|EX_FILE1|EX_TRLBAR,
@@ -973,19 +974,19 @@
 	EX_BANG|EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_TRLBAR|EX_XFILE,
 	ADDR_NONE),
 EXCMD(CMD_mkvimrc,	"mkvimrc",	ex_mkrc,
-	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_mkview,	"mkview",	ex_mkrc,
 	EX_BANG|EX_FILE1|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_mode,		"mode",		ex_mode,
-	EX_WORD1|EX_TRLBAR|EX_CMDWIN,
+	EX_WORD1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_mzscheme,	"mzscheme",	ex_mzscheme,
-	EX_RANGE|EX_EXTRA|EX_DFLALL|EX_NEEDARG|EX_CMDWIN|EX_SBOXOK|EX_RESTRICT,
+	EX_RANGE|EX_EXTRA|EX_DFLALL|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_SBOXOK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_mzfile,	"mzfile",	ex_mzfile,
-	EX_RANGE|EX_FILE1|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_FILE1|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_next,		"next",		ex_next,
 	EX_RANGE|EX_BANG|EX_FILES|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
@@ -994,112 +995,112 @@
 	EX_EXTRA|EX_NEEDARG,
 	ADDR_NONE),
 EXCMD(CMD_nbclose,	"nbclose",	ex_nbclose,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_nbstart,	"nbstart",	ex_nbstart,
-	EX_WORD1|EX_TRLBAR|EX_CMDWIN,
+	EX_WORD1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_new,		"new",		ex_splitview,
 	EX_BANG|EX_FILE1|EX_RANGE|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_nmap,		"nmap",		ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_nmapclear,	"nmapclear",	ex_mapclear,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_nmenu,	"nmenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_nnoremap,	"nnoremap",	ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_nnoremenu,	"nnoremenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_noremap,	"noremap",	ex_map,
-	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_noautocmd,	"noautocmd",	ex_wrongmodifier,
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
 	ADDR_NONE),
 EXCMD(CMD_nohlsearch,	"nohlsearch",	ex_nohlsearch,
-	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_noreabbrev,	"noreabbrev",	ex_abbreviate,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_noremenu,	"noremenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_BANG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_BANG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_noswapfile,	"noswapfile",	ex_wrongmodifier,
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
 	ADDR_NONE),
 EXCMD(CMD_normal,	"normal",	ex_normal,
-	EX_RANGE|EX_BANG|EX_EXTRA|EX_NEEDARG|EX_NOTRLCOM|EX_CTRLV|EX_SBOXOK|EX_CMDWIN,
+	EX_RANGE|EX_BANG|EX_EXTRA|EX_NEEDARG|EX_NOTRLCOM|EX_CTRLV|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_number,	"number",	ex_print,
-	EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_nunmap,	"nunmap",	ex_unmap,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_nunmenu,	"nunmenu",	ex_menu,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_open,		"open",		ex_open,
 	EX_RANGE|EX_BANG|EX_EXTRA,
 	ADDR_LINES),
 EXCMD(CMD_oldfiles,	"oldfiles",	ex_oldfiles,
-	EX_BANG|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_BANG|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_omap,		"omap",		ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_omapclear,	"omapclear",	ex_mapclear,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_omenu,	"omenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_only,		"only",		ex_only,
 	EX_BANG|EX_RANGE|EX_COUNT|EX_TRLBAR,
 	ADDR_WINDOWS),
 EXCMD(CMD_onoremap,	"onoremap",	ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_onoremenu,	"onoremenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_options,	"options",	ex_options,
 	EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_ounmap,	"ounmap",	ex_unmap,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_ounmenu,	"ounmenu",	ex_menu,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_ownsyntax,	"ownsyntax",	ex_ownsyntax,
-	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_print,	"print",	ex_print,
-	EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN|EX_SBOXOK,
+	EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK|EX_SBOXOK,
 	ADDR_LINES),
 EXCMD(CMD_packadd,	"packadd",	ex_packadd,
-	EX_BANG|EX_FILE1|EX_NEEDARG|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_BANG|EX_FILE1|EX_NEEDARG|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_packloadall,	"packloadall",	ex_packloadall,
-	EX_BANG|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_BANG|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_pclose,	"pclose",	ex_pclose,
 	EX_BANG|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_perl,		"perl",		ex_perl,
-	EX_RANGE|EX_EXTRA|EX_DFLALL|EX_NEEDARG|EX_SBOXOK|EX_CMDWIN,
+	EX_RANGE|EX_EXTRA|EX_DFLALL|EX_NEEDARG|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_perldo,	"perldo",	ex_perldo,
-	EX_RANGE|EX_EXTRA|EX_DFLALL|EX_NEEDARG|EX_CMDWIN,
+	EX_RANGE|EX_EXTRA|EX_DFLALL|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_pedit,	"pedit",	ex_pedit,
 	EX_BANG|EX_FILE1|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
@@ -1108,7 +1109,7 @@
 	EX_RANGE|EX_BANG|EX_COUNT|EX_TRLBAR|EX_ZEROR,
 	ADDR_OTHER),
 EXCMD(CMD_popup,	"popup",	ex_popup,
-	EX_NEEDARG|EX_EXTRA|EX_BANG|EX_TRLBAR|EX_NOTRLCOM|EX_CMDWIN,
+	EX_NEEDARG|EX_EXTRA|EX_BANG|EX_TRLBAR|EX_NOTRLCOM|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_ppop,		"ppop",		ex_ptag,
 	EX_RANGE|EX_BANG|EX_COUNT|EX_TRLBAR|EX_ZEROR,
@@ -1120,16 +1121,16 @@
 	EX_EXTRA|EX_RANGE|EX_COUNT|EX_BANG|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_promptfind,	"promptfind",	gui_mch_find_dialog,
-	EX_EXTRA|EX_NOTRLCOM|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_promptrepl,	"promptrepl",	gui_mch_replace_dialog,
-	EX_EXTRA|EX_NOTRLCOM|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_profile,	"profile",	ex_profile,
-	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_profdel,	"profdel",	ex_breakdel,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_psearch,	"psearch",	ex_psearch,
 	EX_BANG|EX_RANGE|EX_WHOLEFOLD|EX_DFLALL|EX_EXTRA,
@@ -1162,115 +1163,115 @@
 	EX_BANG|EX_TRLBAR|EX_WORD1,
 	ADDR_NONE),
 EXCMD(CMD_put,		"put",		ex_put,
-	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_REGSTR|EX_TRLBAR|EX_ZEROR|EX_CMDWIN|EX_MODIFY,
+	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_REGSTR|EX_TRLBAR|EX_ZEROR|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_pwd,		"pwd",		ex_pwd,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_python,	"python",	ex_python,
-	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_pydo,		"pydo",		ex_pydo,
-	EX_RANGE|EX_DFLALL|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_DFLALL|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_pyfile,	"pyfile",	ex_pyfile,
-	EX_RANGE|EX_FILE1|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_FILE1|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_py3,		"py3",		ex_py3,
-	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_py3do,	"py3do",	ex_py3do,
-	EX_RANGE|EX_DFLALL|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_DFLALL|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_python3,	"python3",	ex_py3,
-	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_py3file,	"py3file",	ex_py3file,
-	EX_RANGE|EX_FILE1|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_FILE1|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_pyx,		"pyx",		ex_pyx,
-	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_pyxdo,	"pyxdo",	ex_pyxdo,
-	EX_RANGE|EX_DFLALL|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_DFLALL|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_pythonx,	"pythonx",	ex_pyx,
-	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_pyxfile,	"pyxfile",	ex_pyxfile,
-	EX_RANGE|EX_FILE1|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_FILE1|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_quit,		"quit",		ex_quit,
-	EX_BANG|EX_RANGE|EX_COUNT|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_RANGE|EX_COUNT|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_WINDOWS),
 EXCMD(CMD_quitall,	"quitall",	ex_quit_all,
 	EX_BANG|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_qall,		"qall",		ex_quit_all,
-	EX_BANG|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_read,		"read",		ex_read,
-	EX_BANG|EX_RANGE|EX_WHOLEFOLD|EX_FILE1|EX_ARGOPT|EX_TRLBAR|EX_ZEROR|EX_CMDWIN|EX_MODIFY,
+	EX_BANG|EX_RANGE|EX_WHOLEFOLD|EX_FILE1|EX_ARGOPT|EX_TRLBAR|EX_ZEROR|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_recover,	"recover",	ex_recover,
 	EX_BANG|EX_FILE1|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_redo,		"redo",		ex_redo,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_redir,	"redir",	ex_redir,
-	EX_BANG|EX_FILES|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_FILES|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_redraw,	"redraw",	ex_redraw,
-	EX_BANG|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_redrawstatus,	"redrawstatus",	ex_redrawstatus,
-	EX_BANG|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_redrawtabline, "redrawtabline", ex_redrawtabline,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_registers,	"registers",	ex_display,
-	EX_EXTRA|EX_NOTRLCOM|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_resize,	"resize",	ex_resize,
-	EX_RANGE|EX_TRLBAR|EX_WORD1|EX_CMDWIN,
+	EX_RANGE|EX_TRLBAR|EX_WORD1|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_retab,	"retab",	ex_retab,
-	EX_TRLBAR|EX_RANGE|EX_WHOLEFOLD|EX_DFLALL|EX_BANG|EX_WORD1|EX_CMDWIN|EX_MODIFY,
+	EX_TRLBAR|EX_RANGE|EX_WHOLEFOLD|EX_DFLALL|EX_BANG|EX_WORD1|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_return,	"return",	ex_return,
-	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_rewind,	"rewind",	ex_rewind,
 	EX_EXTRA|EX_BANG|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_right,	"right",	ex_align,
-	EX_TRLBAR|EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_MODIFY,
+	EX_TRLBAR|EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_rightbelow,	"rightbelow",	ex_wrongmodifier,
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
 	ADDR_NONE),
 EXCMD(CMD_runtime,	"runtime",	ex_runtime,
-	EX_BANG|EX_NEEDARG|EX_FILES|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_BANG|EX_NEEDARG|EX_FILES|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_ruby,		"ruby",		ex_ruby,
-	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_rubydo,	"rubydo",	ex_rubydo,
-	EX_RANGE|EX_DFLALL|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_DFLALL|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_rubyfile,	"rubyfile",	ex_rubyfile,
-	EX_RANGE|EX_FILE1|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_FILE1|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_rundo,	"rundo",	ex_rundo,
 	EX_NEEDARG|EX_FILE1,
 	ADDR_NONE),
 EXCMD(CMD_rviminfo,	"rviminfo",	ex_viminfo,
-	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_substitute,	"substitute",	do_sub,
-	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_sNext,	"sNext",	ex_previous,
 	EX_EXTRA|EX_RANGE|EX_COUNT|EX_BANG|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
@@ -1285,7 +1286,7 @@
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
 	ADDR_NONE),
 EXCMD(CMD_saveas,	"saveas",	ex_write,
-	EX_BANG|EX_FILE1|EX_ARGOPT|EX_CMDWIN|EX_TRLBAR,
+	EX_BANG|EX_FILE1|EX_ARGOPT|EX_CMDWIN|EX_LOCK_OK|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_sbuffer,	"sbuffer",	ex_buffer,
 	EX_BANG|EX_RANGE|EX_BUFNAME|EX_BUFUNL|EX_COUNT|EX_EXTRA|EX_CMDARG|EX_TRLBAR,
@@ -1315,28 +1316,28 @@
 	EX_CMDARG|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_scriptnames,	"scriptnames",	ex_scriptnames,
-	EX_BANG|EX_RANGE|EX_COUNT|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_RANGE|EX_COUNT|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_scriptencoding, "scriptencoding", ex_scriptencoding,
-	EX_WORD1|EX_TRLBAR|EX_CMDWIN,
+	EX_WORD1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_scriptversion, "scriptversion", ex_scriptversion,
-	EX_WORD1|EX_TRLBAR|EX_CMDWIN,
+	EX_WORD1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_scscope,	"scscope",	ex_scscope,
 	EX_EXTRA|EX_NOTRLCOM,
 	ADDR_NONE),
 EXCMD(CMD_set,		"set",		ex_set,
-	EX_BANG|EX_TRLBAR|EX_EXTRA|EX_CMDWIN|EX_SBOXOK,
+	EX_BANG|EX_TRLBAR|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK|EX_SBOXOK,
 	ADDR_NONE),
 EXCMD(CMD_setfiletype,	"setfiletype",	ex_setfiletype,
-	EX_TRLBAR|EX_EXTRA|EX_NEEDARG|EX_CMDWIN,
+	EX_TRLBAR|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_setglobal,	"setglobal",	ex_set,
-	EX_BANG|EX_TRLBAR|EX_EXTRA|EX_CMDWIN|EX_SBOXOK,
+	EX_BANG|EX_TRLBAR|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK|EX_SBOXOK,
 	ADDR_NONE),
 EXCMD(CMD_setlocal,	"setlocal",	ex_set,
-	EX_BANG|EX_TRLBAR|EX_EXTRA|EX_CMDWIN|EX_SBOXOK,
+	EX_BANG|EX_TRLBAR|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK|EX_SBOXOK,
 	ADDR_NONE),
 EXCMD(CMD_sfind,	"sfind",	ex_splitview,
 	EX_BANG|EX_FILE1|EX_RANGE|EX_CMDARG|EX_ARGOPT|EX_TRLBAR|EX_NEEDARG,
@@ -1345,49 +1346,49 @@
 	EX_EXTRA|EX_BANG|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_shell,	"shell",	ex_shell,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_simalt,	"simalt",	ex_simalt,
-	EX_NEEDARG|EX_WORD1|EX_TRLBAR|EX_CMDWIN,
+	EX_NEEDARG|EX_WORD1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_sign,		"sign",		ex_sign,
-	EX_NEEDARG|EX_RANGE|EX_EXTRA|EX_CMDWIN,
+	EX_NEEDARG|EX_RANGE|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_silent,	"silent",	ex_wrongmodifier,
-	EX_NEEDARG|EX_EXTRA|EX_BANG|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_NEEDARG|EX_EXTRA|EX_BANG|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_sleep,	"sleep",	ex_sleep,
-	EX_RANGE|EX_COUNT|EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_RANGE|EX_COUNT|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_slast,	"slast",	ex_last,
 	EX_EXTRA|EX_BANG|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_smagic,	"smagic",	ex_submagic,
-	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_smap,		"smap",		ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_smapclear,	"smapclear",	ex_mapclear,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_smenu,	"smenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_snext,	"snext",	ex_next,
 	EX_RANGE|EX_BANG|EX_FILES|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_snomagic,	"snomagic",	ex_submagic,
-	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_snoremap,	"snoremap",	ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_snoremenu,	"snoremenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_source,	"source",	ex_source,
-	EX_BANG|EX_FILE1|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_BANG|EX_FILE1|EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_sort,		"sort",		ex_sort,
 	EX_RANGE|EX_DFLALL|EX_WHOLEFOLD|EX_BANG|EX_EXTRA|EX_NOTRLCOM|EX_MODIFY,
@@ -1423,22 +1424,22 @@
 	EX_EXTRA|EX_BANG|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_stop,		"stop",		ex_stop,
-	EX_TRLBAR|EX_BANG|EX_CMDWIN,
+	EX_TRLBAR|EX_BANG|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_stag,		"stag",		ex_stag,
 	EX_RANGE|EX_BANG|EX_WORD1|EX_TRLBAR|EX_ZEROR,
 	ADDR_OTHER),
 EXCMD(CMD_startinsert,	"startinsert",	ex_startinsert,
-	EX_BANG|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_startgreplace, "startgreplace", ex_startinsert,
-	EX_BANG|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_startreplace,	"startreplace",	ex_startinsert,
-	EX_BANG|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_stopinsert,	"stopinsert",	ex_stopinsert,
-	EX_BANG|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_stjump,	"stjump",	ex_stag,
 	EX_BANG|EX_TRLBAR|EX_WORD1,
@@ -1450,34 +1451,34 @@
 	EX_RANGE|EX_COUNT|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_sunmap,	"sunmap",	ex_unmap,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_sunmenu,	"sunmenu",	ex_menu,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_suspend,	"suspend",	ex_stop,
-	EX_TRLBAR|EX_BANG|EX_CMDWIN,
+	EX_TRLBAR|EX_BANG|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_sview,	"sview",	ex_splitview,
 	EX_BANG|EX_FILE1|EX_RANGE|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_swapname,	"swapname",	ex_swapname,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_syntax,	"syntax",	ex_syntax,
-	EX_EXTRA|EX_NOTRLCOM|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_syntime,	"syntime",	ex_syntime,
-	EX_NEEDARG|EX_WORD1|EX_TRLBAR|EX_CMDWIN,
+	EX_NEEDARG|EX_WORD1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_syncbind,	"syncbind",	ex_syncbind,
 	EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_smile,	"smile",	ex_smile,
-	EX_TRLBAR|EX_CMDWIN|EX_SBOXOK,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK|EX_SBOXOK,
 	ADDR_NONE),
 EXCMD(CMD_t,		"t",		ex_copymove,
-	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_MODIFY,
+	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_tNext,	"tNext",	ex_tag,
 	EX_RANGE|EX_BANG|EX_TRLBAR|EX_ZEROR,
@@ -1486,13 +1487,13 @@
 	EX_RANGE|EX_BANG|EX_WORD1|EX_TRLBAR|EX_ZEROR,
 	ADDR_OTHER),
 EXCMD(CMD_tags,		"tags",		do_tags,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_tab,		"tab",		ex_wrongmodifier,
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
 	ADDR_NONE),
 EXCMD(CMD_tabclose,	"tabclose",	ex_tabclose,
-	EX_BANG|EX_RANGE|EX_ZEROR|EX_EXTRA|EX_NOSPC|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_RANGE|EX_ZEROR|EX_EXTRA|EX_NOSPC|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_TABS),
 EXCMD(CMD_tabdo,	"tabdo",	ex_listdo,
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_RANGE|EX_DFLALL,
@@ -1519,7 +1520,7 @@
 	EX_BANG|EX_FILE1|EX_RANGE|EX_ZEROR|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_TABS),
 EXCMD(CMD_tabonly,	"tabonly",	ex_tabonly,
-	EX_BANG|EX_RANGE|EX_ZEROR|EX_EXTRA|EX_NOSPC|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_RANGE|EX_ZEROR|EX_EXTRA|EX_NOSPC|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_TABS),
 EXCMD(CMD_tabprevious,	"tabprevious",	ex_tabnext,
 	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_NOSPC|EX_TRLBAR,
@@ -1531,34 +1532,34 @@
 	EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_tabs,		"tabs",		ex_tabs,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_tcd,		"tcd",		ex_cd,
-	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_tchdir,	"tchdir",	ex_cd,
-	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_tcl,		"tcl",		ex_tcl,
-	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_tcldo,	"tcldo",	ex_tcldo,
-	EX_RANGE|EX_DFLALL|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_DFLALL|EX_EXTRA|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_tclfile,	"tclfile",	ex_tclfile,
-	EX_RANGE|EX_FILE1|EX_NEEDARG|EX_CMDWIN|EX_RESTRICT,
+	EX_RANGE|EX_FILE1|EX_NEEDARG|EX_CMDWIN|EX_LOCK_OK|EX_RESTRICT,
 	ADDR_LINES),
 EXCMD(CMD_tearoff,	"tearoff",	ex_tearoff,
-	EX_NEEDARG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CMDWIN,
+	EX_NEEDARG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_terminal,	"terminal",	ex_terminal,
-	EX_RANGE|EX_BANG|EX_FILES|EX_CMDWIN,
+	EX_RANGE|EX_BANG|EX_FILES|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_tfirst,	"tfirst",	ex_tag,
 	EX_RANGE|EX_BANG|EX_TRLBAR|EX_ZEROR,
 	ADDR_OTHER),
 EXCMD(CMD_throw,	"throw",	ex_throw,
-	EX_EXTRA|EX_NEEDARG|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NEEDARG|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_tjump,	"tjump",	ex_tag,
 	EX_BANG|EX_TRLBAR|EX_WORD1,
@@ -1567,28 +1568,28 @@
 	EX_BANG|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_tlmenu,	"tlmenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_tlnoremenu,	"tlnoremenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_tlunmenu,	"tlunmenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_tmenu,	"tmenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_tmap,		"tmap",		ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_tmapclear,	"tmapclear",	ex_mapclear,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_tnext,	"tnext",	ex_tag,
 	EX_RANGE|EX_BANG|EX_TRLBAR|EX_ZEROR,
 	ADDR_OTHER),
 EXCMD(CMD_tnoremap,	"tnoremap",	ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_topleft,	"topleft",	ex_wrongmodifier,
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
@@ -1600,58 +1601,58 @@
 	EX_RANGE|EX_BANG|EX_TRLBAR|EX_ZEROR,
 	ADDR_OTHER),
 EXCMD(CMD_try,		"try",		ex_try,
-	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN,
+	EX_TRLBAR|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_tselect,	"tselect",	ex_tag,
 	EX_BANG|EX_TRLBAR|EX_WORD1,
 	ADDR_NONE),
 EXCMD(CMD_tunmenu,	"tunmenu",	ex_menu,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_tunmap,	"tunmap",	ex_unmap,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_undo,		"undo",		ex_undo,
-	EX_RANGE|EX_COUNT|EX_ZEROR|EX_TRLBAR|EX_CMDWIN,
+	EX_RANGE|EX_COUNT|EX_ZEROR|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_undojoin,	"undojoin",	ex_undojoin,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_undolist,	"undolist",	ex_undolist,
-	EX_TRLBAR|EX_CMDWIN,
+	EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_unabbreviate,	"unabbreviate",	ex_abbreviate,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_unhide,	"unhide",	ex_buffer_all,
 	EX_RANGE|EX_COUNT|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_unlet,	"unlet",	ex_unlet,
-	EX_BANG|EX_EXTRA|EX_NEEDARG|EX_SBOXOK|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_NEEDARG|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_unlockvar,	"unlockvar",	ex_lockvar,
-	EX_BANG|EX_EXTRA|EX_NEEDARG|EX_SBOXOK|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_NEEDARG|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_unmap,	"unmap",	ex_unmap,
-	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_unmenu,	"unmenu",	ex_menu,
-	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_BANG|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_unsilent,	"unsilent",	ex_wrongmodifier,
-	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_update,	"update",	ex_update,
 	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_FILE1|EX_ARGOPT|EX_DFLALL|EX_TRLBAR,
 	ADDR_LINES),
 EXCMD(CMD_vglobal,	"vglobal",	ex_global,
-	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_DFLALL|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_DFLALL|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_version,	"version",	ex_version,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_verbose,	"verbose",	ex_wrongmodifier,
-	EX_NEEDARG|EX_RANGE|EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_NEEDARG|EX_RANGE|EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_vertical,	"vertical",	ex_wrongmodifier,
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM,
@@ -1669,61 +1670,61 @@
 	EX_RANGE|EX_BANG|EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_TRLBAR|EX_XFILE,
 	ADDR_OTHER),
 EXCMD(CMD_vim9script,	"vim9script",	ex_vim9script,
-	0,
+	EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_viusage,	"viusage",	ex_viusage,
 	EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_vmap,		"vmap",		ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_vmapclear,	"vmapclear",	ex_mapclear,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_vmenu,	"vmenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_vnoremap,	"vnoremap",	ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_vnew,		"vnew",		ex_splitview,
 	EX_BANG|EX_FILE1|EX_RANGE|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_vnoremenu,	"vnoremenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_vsplit,	"vsplit",	ex_splitview,
 	EX_BANG|EX_FILE1|EX_RANGE|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_vunmap,	"vunmap",	ex_unmap,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_vunmenu,	"vunmenu",	ex_menu,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_write,	"write",	ex_write,
-	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_FILE1|EX_ARGOPT|EX_DFLALL|EX_TRLBAR|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_FILE1|EX_ARGOPT|EX_DFLALL|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_wNext,	"wNext",	ex_wnext,
 	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_FILE1|EX_ARGOPT|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_wall,		"wall",		do_wqall,
-	EX_BANG|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_while,	"while",	ex_while,
-	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN,
+	EX_EXTRA|EX_NOTRLCOM|EX_SBOXOK|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_winsize,	"winsize",	ex_winsize,
 	EX_EXTRA|EX_NEEDARG|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_wincmd,	"wincmd",	ex_wincmd,
-	EX_NEEDARG|EX_WORD1|EX_RANGE|EX_CMDWIN,
+	EX_NEEDARG|EX_WORD1|EX_RANGE|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_windo,	"windo",	ex_listdo,
 	EX_NEEDARG|EX_EXTRA|EX_NOTRLCOM|EX_RANGE|EX_DFLALL,
 	ADDR_WINDOWS),
 EXCMD(CMD_winpos,	"winpos",	ex_winpos,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_wnext,	"wnext",	ex_wnext,
 	EX_RANGE|EX_BANG|EX_FILE1|EX_ARGOPT|EX_TRLBAR,
@@ -1741,72 +1742,72 @@
 	EX_BANG|EX_NEEDARG|EX_FILE1,
 	ADDR_NONE),
 EXCMD(CMD_wviminfo,	"wviminfo",	ex_viminfo,
-	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN,
+	EX_BANG|EX_FILE1|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_xit,		"xit",		ex_exit,
-	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_FILE1|EX_ARGOPT|EX_DFLALL|EX_TRLBAR|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_FILE1|EX_ARGOPT|EX_DFLALL|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_xall,		"xall",		do_wqall,
 	EX_BANG|EX_TRLBAR,
 	ADDR_NONE),
 EXCMD(CMD_xmap,		"xmap",		ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_xmapclear,	"xmapclear",	ex_mapclear,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_xmenu,	"xmenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_xnoremap,	"xnoremap",	ex_map,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_xnoremenu,	"xnoremenu",	ex_menu,
-	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_RANGE|EX_ZEROR|EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_OTHER),
 EXCMD(CMD_xrestore,	"xrestore",	ex_xrestore,
-	EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_xunmap,	"xunmap",	ex_unmap,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_xunmenu,	"xunmenu",	ex_menu,
-	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN,
+	EX_EXTRA|EX_TRLBAR|EX_NOTRLCOM|EX_CTRLV|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_NONE),
 EXCMD(CMD_yank,		"yank",		ex_operators,
-	EX_RANGE|EX_WHOLEFOLD|EX_REGSTR|EX_COUNT|EX_TRLBAR|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_REGSTR|EX_COUNT|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_z,		"z",		ex_z,
-	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_FLAGS|EX_TRLBAR|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_FLAGS|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 
 // commands that don't start with a letter
 EXCMD(CMD_bang,		"!",		ex_bang,
-	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_FILES|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_BANG|EX_FILES|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_pound,	"#",		ex_print,
-	EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_and,		"&",		do_sub,
-	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_MODIFY,
+	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_star,		"*",		ex_at,
-	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_lshift,	"<",		ex_operators,
-	EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN|EX_MODIFY,
+	EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_equal,	"=",		ex_equal,
-	EX_RANGE|EX_TRLBAR|EX_DFLALL|EX_FLAGS|EX_CMDWIN,
+	EX_RANGE|EX_TRLBAR|EX_DFLALL|EX_FLAGS|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_rshift,	">",		ex_operators,
-	EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN|EX_MODIFY,
+	EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 EXCMD(CMD_at,		"@",		ex_at,
-	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_TRLBAR|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_tilde,	"~",		do_sub,
-	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_MODIFY,
+	EX_RANGE|EX_WHOLEFOLD|EX_EXTRA|EX_CMDWIN|EX_LOCK_OK|EX_MODIFY,
 	ADDR_LINES),
 
 // commands that start with an uppercase letter
@@ -1814,7 +1815,7 @@
 	EX_EXTRA|EX_RANGE|EX_COUNT|EX_BANG|EX_CMDARG|EX_ARGOPT|EX_TRLBAR,
 	ADDR_OTHER),
 EXCMD(CMD_Print,	"Print",	ex_print,
-	EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN,
+	EX_RANGE|EX_WHOLEFOLD|EX_COUNT|EX_FLAGS|EX_TRLBAR|EX_CMDWIN|EX_LOCK_OK,
 	ADDR_LINES),
 EXCMD(CMD_X,		"X",		ex_X,
 	EX_TRLBAR,