Bluetooth and iPega

first of all thank you for osmc, it’s great on my rpi2.
Now the problem: I’ve been able to connect my iPega PG-9028 to OSMC, except that it doesn’t actually work. I can’t use the D-PAD to move through the menus, nor the media buttons to control media, nor the touch area to move the mouse. Whan can I do to fix that? Thank you.