Earlier versions of the counter-refresh functionality never worked for me. It was so bad that I stopped trying. But, this morning I had to make a late change to my unit prototypes after I had already placed over 600 pieces on three different setup maps. So, with this many pieces to re-place it was worth another attempt. Lo and behold, the UI was simple to use and the process functioned flawlessly.
Three cheers for the devs! You guys saved me hours of time on re-work and possibly therapy.