The filemanager has gotten no attention for mobile use, as I mostly saw that as a sysadmin tool and not something one would use on a phone. Generally mobile use of the dashboard as an admin is a bit rough 😕
The file manager is in its early state UI wise. I also have further ideas how to improve that, at the moment we focus on other areas like apps for a bit. But let those ideas be discussed I'm the forum and I will pick them up later.
Best to break up in individual feature requests though.