How to use additementity and remove item?

[FragdaddyXXL]

OH and could I use this to set an area active? How would I do that?

Inside Strepper's example function aptly named function, you can add:

if(asItem == "KeyThatActivatesArea")
{
AddEntityCollideCallback(string& asParentName, string& asChildName, string& asFunction, bool abDeleteOnCollide, int alStates);
}

That will tell the engine to start looking for a collision between the player and the script area.