Hi friends, I have a problem with the control camera SHIFT + U. 
 
I can not do the same movement that right mouse button does. In the keyboard only with "slide" or "spin" but I can not look to the right or look to the left of the position that the camera is stopped in SHIFT + U. 
Only I do this movement with the right mouse button, but the mouse cursor stays on the screen.
 Help and sorry for my english by google translator! LOL! 
 
 
 Thank you