ok,  so much information so fast. 

Been reading here and going back to the poser doc's. 

Arcadia, Found where to  'set figure parent' in the menu's and that helps as not having to go to the hierarchy wiindow. 

I don't have a graphic at the moment for you Ms. Nancy.   I had a bicycle model and started to animate it.  Ultimately was hoping I could sit a character on it and 'pin' the hands to the bars, the feet to the pedals, and butt to the seat.  Then when the bike is activated the body parts would react to the bike, while those five parts stayed fixed to the respective parts.

Ockhams swing thing was right on.  Most models i'm making are in multiple parts and some being set up as figures.  The thought of adjusting frame by frame is not as easy as I'd hoped for,  but if it were too easy, artists we would not be.

Dusted off the bike and did some quick work.  have much more to do.  At least now when I move the bike, her butt will be stuck to the seat, Imagine the feet and hands will follow.