Alright... I'm liking this stack feature! LOL Here's how I created a "stack" in the PSE Organizer and set the top picture to be what I wanted.
- Select all the photos that you want to be in a stack.
- Right click on one of the selected photos and select Stack> Stack Selected Photos or just hit CRTL+ALT+S
- Now all your photos are stacked behind on photo. Right click on the stack and select Stack> Reveal stacked photos
- Right click on the photo/element that you want to be on the top of the stack and select Stack> Set as top photo
I'm loving this feature for stacking up alphas where each letter is it's own file. Thanks for asking the question that pushed me to try it out!
LMK if that works for you!