Displays usage of an admin command to users depending on the setting of the sm_show_activity cvar.
This version does not display a message to the originating client if used from chat triggers or menus. If manual replies are used for these cases, then this function will suffice. Otherwise, ShowActivity2() is slightly more useful.
Only others see chat message, not yourself when execute command from chat or menu.
It depends your sm_show_activity
setting, which players and admins see chat message at the end.