i want to bulit a car and the the parts and want to built it in the .asm.
The thing is i cant select things to fit them together, i dont now what to do.
I already reinstalled the st9
I think You have to give us a couple of infos more to help.
The question are:
as @hawcad states we need more info: but as a guess your parts may not be active. must be active to mate.