I completely agree. It should be a given option, to make any overlay object or MSO full screen.
I'm loving dps, but hat having to make some strange MSO's to get images to be "full screen".
It works to go full screen with a messy mso object, but the other overlays which are "beneath" that fullscreen mso f.e. Scrollable containers doesnt seem to work anymore then. So better just have a fullscreen slideshow with nothing more special in(under) it.
I have it working with vdeo underneath and it works just fine, but not scrolling content, when I get a chance, I will see if I can get it to work and let you know. maybe they will get this going in v21 or 22