Truthfully, why do you want to go to this level of detail in your Window Families? It can be done. Draw all these different extruded elements as profiles, then use SWEEPS inside just about any GENERIC MODEL FAMILY and then make the extrusions do what you want. But again I ask, WHY? It just seems like a lot of excess work for very little pay off. More often than not you're better off generally modelling the extrusion of the overall window element, and then using a detail family to place a drawing file in a section view for the extrusion.
As an architect that regularly details windows I can tell you that this kind of detail is useless to us. More often I find myself reducing the detail given by a manufacturer so that I can more effectively communicate the important stuff, not a particular manufacturer's specific construction techniques.
I could potentially see how if you were on the manufacturing side you might try and use this to extrapolate detailed information about material used, but I suspect that Revit isn't even the best software to be using for that particular application.
