@OSUCcess <object> [=<message>]

Sets the other success message for <object>.
If no <message> is specified it erases any previously set <message>.

Other-Success messages have similar purposes on different types of
objects.  Typically, it tells the other players in the same room what
the player is doing:

ON ROOMS:   It's shown to others in the room when a player enters or looks.
ON THINGS:  It's shown to others in the room when picked up.
ON EXITS:   It's shown to others in the room when used successfully.
            If blank, "<name> <exit>s<name>" or "<name> goes <exitname>"
            will show, depending on the exit type.  (See AUTOS)
ON GROUPS:  It's shown to others in the room when a player joins.
ON PLAYERS: It notifies a player they were just paged successfully.

see also: @success, @ofail, using, pages, autos, substitutions, editing