I was in the same situation as the OP just now. (Stupidly) just bought a Legacy body as it seems a lot of newer clothing designers are not supporting my Slink body any more. Didn't realise that I've just blown 5k on a body which has zero support. Annoyingly, I like the body shape, and the hud is easy to use. But I was having the same issue as the OP with not being able to set the cam angle. So thanks to steeljane, I at least can tweak the angle through the hud, but seems that the full rearcamoffset options in the viewer itself don't respond to the Legacy body?