<aside> ⚡ Create templates with "new page" option. The new page inside the template has a link to desired folder.

Upon each addition of "Add new page," a back link is created in corresponding folder

Drag and drop documents into "Archive" or "Delegate" and watch the backlink update like this:

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Project 1

New Document

New Document

New Document

Project 2

New Document

New Document

New Document

Archive

Donate

Delegate