Hello Rick,
for 4.0 I was really hoping for Photoshop-style picture scrolling, where I can move an edge of the picture to a center of the screen and even further. I want all four panels to be there, but they are in the way all the time, turning off and on again is pain in the butt... And I have one bugreport, I tried the latest beta on Win 8.1 Pro in VMware (see Diagnostics). (VMware, beacuse 4 replaced my v3.5.11 even I didn't want that). I was just doodling "nothing" and horizontal, vertical and later diagonal spikes appeared (instantly), see pic below. I didn't draw anything that touches the edge of the picture, just the rubbish in the middle. Hope you find it helpful.