@stokerg Yes, invert selection option.   Ah, so history studio is location. I rarely use history studio.  I mostly just tap back button or undo. So outside of that, whenever I have a smart selection - active (the marching ants)  it transcends layers, can affect any layer that’s chosen. Which I use for duplication of a specific area, or erasing within or outside of a specific area.    So outside of history studio, there is no way, at a glance, to notice (the marching ants are inverted)   @toltec and @DM1 You jackasses.. lol. Had me in laughter over here.