I change the system.es.menu line in recalbox.conf to system.es.menu=bartop. This hides nearly all the menus save for shaders and sounds.
I find this is a good way to lock down the stuff you don't want kids or grandparents to change. You can always switch it back via smb mount or SSH when you need to hack on some stuff.
nadenislamarre it would be nice if the "F1 menu" line was hidden in bartop mode.