That was the reason I stopped using mine. Too much of a PITA to check if it was on all the time. I had an A and a B but I stole the emitter out of the A so I can’t check it’s UI. Somehow I remember a shortcut to firefly with it. I do remember the UI was in flux. Not all As or Bs were the same depending on when they were bought.
Edit- yeah, I found a conversation about this here - “REVIEW”: Sofirn SP10B (AA/14500) w/ night beamshots [PIC HEAVY] - #15 by pennzy