I am trying to use sketch in Xactmate and I came across something I can not figure out how to do. I am working on a gable roof, one side has 6’ rafters and the other side is 20’. How can I do this in sketch? Every time I make one side either number it locks and I can not make the other side different. I think I have done it in the past on accident, but I am not getting so (un)lucky this time around.