MultipleMediaEditor - multiple instances within a field

hey, we’re trying to build simple quiz editor. Went with JSON field type where we can easily save multiple questions/answers in simple structure, that works perfectly.
Problem: we would like to get optional image to each question/answer. And no idea how to do that properly. When we add image in one place - it is automatically show in all other places where MultipleMediaEditor is rendered? Is there some way we could inject additional data to linked file or something, so we could then only render it in appropriate place?