Beauty button now is Beauty and Short. Works as follows Beauty on: If a face is selected, only subdivide the longest 2 sides Beauty & Short on: If a face is selected, only subdivide the shortest 2 sides 1 problem atm is when more than 2 sides are equal. Must add code to check for this and disable beauty on that face. Use with caution! :) Also restoring selection needs to be tweaked here. Side Note: for most accurate subdividing, use edge mode and select only the edges you wish to cut rather than relying on beauty.