I have a master page with assets and components, then pages with instances and customizations to the instances, let’s say each page has versions of some of the components. I want to export certain objects of each page simultaneously, without having to go back and forth between pages and hit Export again.

If nothing is selected, the behaviour I expect is that Ctrl+Shift+E would export all items in the entire document that have export settings, not just the page that is currently open.