Usage: add_timed_property(mixed property,int value,int duration) i.e. add_timed_property("property",1,1000); This adds a property which will disappear after 1000 hb's on a player or NPC or a roughly comparable time on rooms or items. Note that timed properties survive logouts so are quite useful for regulating things like quests, for example you can prevent a quest being re-done until the players has put in two more days.