identified in their own documentation.
@end itemize
+@cindex enabling Transient Mark mode temporarily
While Transient Mark mode is off, you can activate it temporarily
using @kbd{C-@key{SPC} C-@key{SPC}} or @kbd{C-u C-x C-x}.
@table @kbd
@item C-@key{SPC} C-@key{SPC}
-@kindex C-SPC C-SPC@r{, disabling Transient Mark}
+@kindex C-SPC C-SPC@r{, enabling Transient Mark temporarily}
Set the mark at point (like plain @kbd{C-@key{SPC}}) and enable
Transient Mark mode just once, until the mark is deactivated. (This
is not really a separate command; you are using the @kbd{C-@key{SPC}}