certain commands only function if they are previously declared within the same script: pickActor, useCamera, pointAtTarget... Yep, of course. Anything that takes an object reference as an argument would do that. If the object referenced in the asrg is not valid, the directive is also not valid as it points at nothing. Have you played with the possibility of pointing these arguments at valid but null objects, like UNIVRSE or relational references like PARENT? Thanks!