diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
index 15ffed3..f3aab92 100644
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -2739,6 +2739,8 @@
 virtcol({expr})			Number	screen column of cursor or mark
 visualmode([expr])		String	last visual mode used
 wildmenumode()			Number	whether 'wildmenu' mode is active
+win_execute({id}, {command} [, {silent}])
+				String	execute {command} in window {id}
 win_findbuf({bufnr})		List	find windows containing {bufnr}
 win_getid([{win} [, {tab}]])	Number	get window ID for {win} in {tab}
 win_gotoid({expr})		Number	go to window with ID {expr}
@@ -4012,7 +4014,10 @@
 		To get a list of lines use |split()| on the result: >
 			split(execute('args'), "\n")
 
-<		When used recursively the output of the recursive call is not
+<		To execute a command in another window than the current one
+		use `win_execute()`.
+
+		When used recursively the output of the recursive call is not
 		included in the output of the higher level call.
 
 exepath({expr})						*exepath()*
@@ -10310,6 +10315,12 @@
 <
 		(Note, this needs the 'wildcharm' option set appropriately).
 
+win_execute({id}, {command} [, {silent}])		*win_execute()*
+		Like `execute()` but in the context of window {id}.
+		The window will temporarily be made the current window,
+		without triggering autocommands.
+		Example: >
+			call win_execute(winid, 'syntax enable')
 
 win_findbuf({bufnr})					*win_findbuf()*
 		Returns a list with |window-ID|s for windows that contain
diff --git a/runtime/doc/popup.txt b/runtime/doc/popup.txt
index 1954754..c573e77 100644
--- a/runtime/doc/popup.txt
+++ b/runtime/doc/popup.txt
@@ -70,6 +70,7 @@
 there is not enough space, some text may be invisible.
 
 
+
 TODO:
 
 Example how to use syntax highlighting of a code snippet.
@@ -242,14 +243,6 @@
 		positioning mechanism applied.
 		If popup window {id} is not found an empty Dict is returned.
 
-win_execute({id}, {command})
-	  	{not implemented yet}
-		Like `execute()` but in the context of window {id}.
-		The window will temporarily be made the current window,
-		without triggering autocommands.
-		Example: >
-			call win_execute(winid, 'syntax enable')
-<
 
 							*:popupclear* *:popupc*
 :popupc[lear]	Emergency solution to a misbehaving plugin: close all popup
@@ -274,6 +267,10 @@
 
 The window does have a cursor position, but the cursor is not displayed.
 
+To execute a command in the context of the popup window and buffer use
+`win_execute()`.  Example: >
+	call win_execute(winid, 'syntax enable')
+
 Options can be set on the window with `setwinvar()`, e.g.: >
 	call setwinvar(winid, '&wrap', 0)
 And options can be set on the buffer with `setbufvar()`, e.g.: >