We are routed and drilling for emtek edge pulls and I want to copy and modify some that are already in the system. All I need to do is change the length and move the holes in 3d (I can handle the machining tokens, etc) but I just want to see it accurately in 3d.

When I open the files I can't seem to modify the vertices of these. I also have little to no experience modeling in Autocad but would consider myself advanced in 3ds max which is similar. Not sure where to turn for this.