Pseudo AIs must sometimes be created for AI to store important information about objects - information that's unavailable otherwise - and for certain interactions, such as AIs attacking non-AI objects.

There is more than one way to make a pseudo-AI, but there is only one good way to make a pseudo-AI. The reason for this is that AIs hog up game resources. You must follow this method unless you wish to put a strain on the engine by creating many objects of this type.

Here's how:
First, you must add an "AI->AI Core->AI" property to the object. Set the "AI" to "Default".
Second, add "AI->State->Current mode". Make sure this is set to "Asleep".
Third, add the "Team" property and set it as appropriate.

I recommend you package this stuff into a metaproperty.