I have a store of lots of template parts which only need the length changing so I can use them in different models. This usually works by clicking the part once and I am then able to input the new length in the box that pops up and then save this as a new part. However I can't do this any more and the other methods of changing the length don't make any changes except changing the text displayed on screen. I have no idea how this has happened as it was working perfectly fine a few days ago. Please Help!