Well this is a CAD software from a parallel universe, you wouldn't know what those mechanical engineers from that universe prefer. I'm a physicist and I only u

Well this is a CAD software from a parallel universe, you wouldn't know what those mechanical engineers from that universe prefer. I'm a physicist and I only used one CAD software occasionally. In the CAD software I used I had to clone primitive objects to use them in multiple operations. If I wanted to change one dimension I had to update all the clones. Simply the acyclic graph model works better for this than the tree model. (Also some operations were irreversible, that was absolutely inexcusable.)