I think this would be good for the program itself as well as the user. I notice my processor fan spinning up when I think the program is trying to figure out what frame I want? Or it is related to a separate issue posted.
However, for user experience- I think having a (LOCK) symbol on the frame, and the ability to select color frames to identify what frame your clicking on when TEXT or Images are layered. Is helpful. I noticed the “Crop an Image” request which would help with this because sometimes unless you resize an image exactly in an Photo editor the image box cross the page. (note: do not restrict being able to layer frames) The end results of stunning.
Also an AUTO SAVE after the initial file save would be great. I had a power failure the other day and lost 5 slides, but getting into the habit of saving every few slides really did help this weekend. But I suggest until you have auto save in place – I suggest you add that to your training – to Save your work frequently and the more complex your project the more often you should save it to avoid loss. (example: Power failure)