When using Viveza I can hold down the Ctrl key (or Cmd key on my Mac) to see the selection mask as I move or resize the control points. This also used to work on Silver Efex Pro but stopped working a couple of years back. It’s such a useful feature and saves lots of time. Having to turn on and off the mask view using a tickbox in the Control Point list slows down the editing experience. It would be nice to see this feature adopted across all the Nik Collection.