Either the one in Levels, or the dedicated histogram window? Yes, CS does this, and I have CS, but PSE loads faster and is on my wife's computer, where CS isn't. TIA.
#1
I don't think so - this is I believe a new feature with CS. It would be very useful....(one possible way of colourmatching panorama sections is to get the overlapping sections to have has close as possible the same histogram and it's difficult without being able to have them both on the screen at once)
#2