"Hi Lionel, Sorry to reply to an old post. But I have been having similar issues. .Story files disappear. I chalked it up to overwriting o..."

"I answered my own questions: I moved the "mask" to cover the unwanted boxes onto a seperate layer and then had that layer appear upon cli..."

"Thanks Ren! That is an interesting idea. I will see if I can figure out how to do that on a slide layer =)"