The increase of these type of devices is quite high in the last two years and, to be honest (and since the android version has it implemented already), i was surprised to find that the Windows version lacks the support for any non-keyboard/gamepad input.   I don't think it would be too much work to add the support for the same kind of input (being able, of course, to change the sizes and placements, due to different tablet sizes).   Thanks in beforehand.