In Lightwave 3D, this is butt-easy, so I hope I'm not spoiled but it seems to me there must be a way to do this in Poser 7 as well.
What am I talking about? Okay, say I want to make a pair of wings flap. (Actually, this is not just an example, it is what  I'm trying to do now in Poser 7).  The figure "Seraph" has right and left wings (body parts), which have a "flap" transform in the properties. I want to go into the graph, and just define and apply an oscillating curve, (or spline, or expression... however you want to say it)...to make the wings flap. Doing this by hand is tedious, annoying,  and not at all erotic...
How can I apply expressions like noise, oscillation, etc to my graph splines?

thanks in advance.

Eye