I searched, but I am not sure anyone else has asked for this. I find that I am often using assets from different sources. for instance I will have an intro and some music files that I keep on the iPad in my "files" app and then send video from my phone to the iPad which will show up in the "photos" app, and when I am making the video I have to switch between sources to get to files and it feels a bit messy.
What if there was a bin just for the project to store all the assets being used (though it would just be shortcuts to the files, they would not need to be moved)?
For instance: I make a new project and then navigate to my assets from various places and then send them to be referenced from one bin (or a type of source, as it were, for LF). This "project bin" changes with the selected project and holds only the referenced items selected for that project.
I hope this makes sense.