Rotate positions of cardinal points?

When I first start NIghtshade (on a PC) , the cardinal points are displayed, and N is up, S is down etc. Is there a way to rotate the positions of the cardinal points so that, for example, N is to the right? (Of course all the other points would be in the correct positions relative to N). The reason I am asking is that at the Ghana Planetarium where I hope to use this software, our audience tends to sit on one side, so they are looking primarily above their heads and in front of them. IF I want to show them where a particular planet/other feature is, it may be displayed behind them, and it is difficult for them to turn as we don't have swivel chairs! In Stellarium I just use the arrow keys to change from viewing S to E, N, W. But when I use the arrow keys in Nightshade it seems to rotate the view so that I end up being able to see only the ground rather than any sky.