From Essential Hacks (http://www.simania.nl/sdls/eh/sdls-eh.htm):

Buyable pedestrian portal

For accidental deletions (invisible, use move_objects cheat to buy and place). 
Put an extra one in the home to see if visitors will pop out of it, but be 
warned: burglars will use it too! Must be turned towards a level surface.
File: GameData\Objects\Pedportal.iff
Last uploaded: 03-01-2005
Catalogue: Outside, Misc, Misc.
Version: UL
