Control mouse with Leap Motion? (UMG)

Hi everyone!

Currently I have a widget built in UMG, the buttons work fine with a mouse but I have no idea how to control the mouse with a leap motion. I tried downloading a mouse plugin of the Leap app store but it doesn’t override the Ue4 mouse when playing the game. I was wondering if there is a way to control the mouse inside Ue4 with a Leap motion?
Any help would be greatly appreciated!