Having used Autocad, Solidworks and ProE, I'm wrestling with the 3D aspect of SU. Is there a way to get things to "hold together" (i.e. not pulling the sides off of push/pull objects) as though they were a solid? So far I've been making everything into a component if I want to keep all of the surfaces together, but this seems like a work-around. Maybe this is a pro feature.... Thanks for your help!