I've been having a look at the terminal and I connected a USB bluetooth adapter. It seems to be recognised by the device, and is able to scan for nearby devices
is it feasible to connect to the remove device (using the terminal) and the bluetooth adapter and use this as the keyboard and mouse connection?
this would be really useful for iPads which use a lightning connection. I can use a Lightning-HDMI adapter for the screen video. It would be great to connect the virtual keyboard and mouse using bluetooth.