the following change is in the new build:

with the buttons 1,2,3,4,5 can be adjusted image size and position.
1= full screen,
2 = PIP left upper corner,
3 = PIP right top corner,
4 = PIP Left lower corner,
5= PIP right bottom corner,
Full screen is the top window at program start.
Selecting button 1 overwrites this setting and allows the full screen window to be rear, behind other windows.