Dear Mr Guido,
I see this post is quite old.
I also now have to build a model where a 2 crane's are used to move one part.
Has the library changed? can one do this know?
If yes = do you have an example for me?
If no = do you know of a way around this? another way I could model this situation?
I do not know how to do this without changing the logic inside the crane.
I have managed to synchronize two cranes to move 2 parts at the same time. By modifying just the 3D-graphic you should be able to make it look like two cranes moving one part.
For example, you could make the Source1 and Buffer1 invisible, move the 3D-graphic of Source and Buffer a bit down etc. I uploaded two models, one with just the logic, and one with some modified graphics.