I've been teaching InDesign since it came out in 1999. I've never heard of a "caption copy."
The only caption feature I know of in InDesign is creating Live Captions (Object > Captions > Geneate Live Caption or Generate Static Caption).
Thank you Steve
I'm a little confused as I can't find anything on these topics they have
asked for??? I have attach a copy of what they have asked us to do, maybe
I'm reading this wrong
On Saturday, February 27, 2016, Steve Werner <email@example.com>
You can make a screen capture and attach with the "camera" icon in the editor window.
You can't attach a document.
I'd read that as caption copy = caption text.
The body copy. The headline copy. The caption copy. Means the text used for that page element.