I have a drawing (basically a layout of a building) and a lot of the lines are fixed in place. Many others though are regularly dimensioned. I now want to move a couple of the "rooms" around but whenever I try to delete one of the lines/fixed relations it turns all red/yellow saying it is unsolvable. I don't understand why this is as all I'm doing is trying to remove a fixed relation and replace it with a regular dimension. Is there a way I can delete all the fixed relations at once instead of going through one by one? In the diagnose menu it brings up what to fix but it wants me to delete EVERY dimension and relation I have put in which is not going to happen.