Windows 7&10 ArtRage 5.something (don't know, but the newest ) ---

After going through the manuals (4 and additions of 5) I have been reading old threads right now because I was looking for a way to make light come from a different direction than upper left. In 1 or 2 old posts (from 200x?) somebody mentioned a lighting editor, for the future or as an addon? No idea...
So, is there a lighting editor? Is there a way to change the direction of the lighting when editing the canvas settings?
Thanks
astrid