Your campaign file management design is pathetic and completely counter-intuitive. The only way to organize old campaigns (which we use as templates for new ones) is filing them in folders, but that does not remove them from the main list. The only way to remove them from the item list is to delete them which sends them to another list, but also removes them from the file folder structure. While they are still accessible in deleted items, they cannot be organized for easy retrieval. And there is no search facility that I can see to at least filter them. So we end up scrolling through hundreds of items to find the one we want.
And I can find no explanation of the difference between deleting and archiving.
Why can't you use a structured file management system like everything else does? Items moved to folders should be removed from the root directory. It's such a simple thing to do.