I probably have a relatively unique need in 2D drawings.
I publish a digital magazine and the convention is to place multiple parts on a single page to save file sizes. Also, to allow page contents to be balanced, I either need the ability to group a set of drawing pages for a project and move parts between them or be able to freely copy and paste parts from one drawing to another.
In my magazine, Model Engine Builder, I start out with a page of views of the assembled project. Next page(s) will be an exploded view with a BOM and subsequent pages showing parts in the order in which the building of them is explained in the body of the magazine article.