Does anyone here know if it is possible to move the mouse cursor inside of a widget using arrow keys, with similar drag and acceleration functionality to this gamepad UMG plugin?
(Yes, I am looking for the equivalent of Microsoft Mouse Keys for Unreal) 
The player needs to be able to move the cursor by a single screen co-ordinate along the x or y axis, but also to be able to hold an arrow key down and zip along an single axis in a straight line.
Ideally I would like the ability to use this functionality in-game also, to have it permanently active in order to make very precise camera movements.
Thank you in advance, if anyone has any idea how this could be achieved.