Hi, yes that's a feature I would like to add. I am (unfortunately) super busy these days so I can't say when I'd be able to add it. But someone else might! The code to save / load a playlist is trivial to add and starting a playlist automatically is equally as trivial.
Hi, this probably won't be added. The code for detecting input would have to be added to sys-tune sysmodule. This isn't difficult but it's preferred to use the overlay for playback control. Not a bad suggestion though!
You could open an issue of the GitHub page asking for such feature, see what the author thinks of it (I'm not the author, I just added a few features and fixes)