In Visual mode with 'showcmd' display the number of bytes and characters.
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index b48030f..860730f 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -6065,6 +6065,8 @@
option off if your terminal is slow.
In Visual mode the size of the selected area is shown:
- When selecting characters within a line, the number of characters.
+ If the number of bytes is different it is also displayed: "2-6"
+ means two characters and six bytes.
- When selecting more than one line, the number of lines.
- When selecting a block, the size in screen characters:
{lines}x{columns}.