Feature Request: All three Axis at once Rotation Widget

All three Axis at once for the TranformMove and Scale Widgets works in Wicked Engine! Why not for the Rotation Widget! You cant grab the Rotation  Widget in the middle and do a three axis at once Rotation of the selected object in the 3D view!
Here is a video from UE that demonstrates this Three Axis Rotation at once! Not possible in Wicked Engine! 
https://youtu.be/suHUC713z4Q?t=119