hi! I have a problem. I'm doing a project in the university. The project is a folding shelf. the shelf has a lot of similar and cycle parts. so my qustion is if there's a function in the solid that can pattern my parts while i'm in the sketch(not in the assembly) and still when i'l get to the assembly the parts will move to the directions they should move( up and down). my second question is about the assembly. we by mistake puted a middle shelf first and now he canot move, so its very problematic for me to make video motions and etc.. there is an easy way to make the part move, or i need to start from the begining? Thanks in advance.