Rename popup window?

I’m working on a project where clicking on a picture brings up a popup. Because it’s all on 1 page, I want the popups to all be the same size & in the same space (this isn’t a menu situation where the popup is related to the link that calls for it). The only way I could figure out how to do this was to copy the popup background from one to another. Only problem is I now have a whole bunch of popups called “popup 2 copy”

Clicking on a picture brings up the right popup, but it’s hard to know which one I want when I need to make changes. Is there anyway around this?

You can rename popups both from the layers panel and from the arrange inspector.