Here's an idea - use the features you already have in the most common way I see people staple PDFs to create a single file.
Currently, you can only select "Use file name as page label" if you combine PDFs inside of Bluebeam. If you use the stapler, that option does not exist. The result - combined PDF sets uploaded to a bluebeam session, without page labels and no way to add them (*BB sessions prohibit any editing of the pdf…)