When I have an Android TV (yes, I know not supported but still fully running) I found out that I can backup a folder on an external usbdisk connected to my Android TV, but I cannot add a normal folder from that same external usbdisk. Why is that different? It sounds to me that the file permissions are not the problem, right? I want to have the option to create a folder (from a read/write-key) in that external usbdisk (/storage/usbdisk/media for example). Why? Simple, because I can have my NAS or pc as a source and sync it always with my Android TV without any interaction by me. Due to limitations of Android 5.x or app-limitations (?) I cannot automatically move files from /sdcard (main volume) to /storage/usbdisk while I can backup /storage/usbdisk/media in Bittorrent Sync which implies that it should be possible to do, right? Hope anyone has tips or solutions...and maybe news of upcoming version (that can be sideloaded on Android TV ). Thnx!