This command allows DMs to make a monster or an item permanent in the parent room. You may also use this command to delete objects or creatures from the perm list for a room, as well as set the timeout value. The timeout value is the time in seconds that it will take before the permed object or creature will return after leaving the room.

In addition, you can use this command to place permanent tracks leading out a specified exit

Examples :

:*perm o d 1
Perm object slot #1 cleared.

:*perm o leather 1300
leather armor permed with timeout of 1300.  

:*perm c wiz 19900
wizard's apprentice permed with timeout of 19900.

"*perm t north
Perm tracks added leading north.