If you are talking about NS mode, then make use Source Ellipse or Rectangle with the following setting: K*MI8')
Q[Tbdc%1EG
Source Distance = 0 *-_joAWTG
'VY\ut
Then use Source X and Y to adjust the angle of emission 5YiBw|Z7 "
W!Rr_'yFe)
Hope this helps :)