Not too big of a thing but it’d be cool to be able to pin files to the sidebar in Nautilus, like you can with folders.
The file would show up like how folders currently do, perhaps with the ability to give them a nickname. They could have the standard icon for that file type.
My specific use case would be pinning a textbook for a class.
You can drag & drop a file to “Starred” in the sidebar to star it, or open the file’s properties and top left corner click the star to star/unstar it. When you click on Starred in the left sidebar you’re shown all your starred files. It’s basically a way to favorite files, so you have another way to quickly access them.