Bone pose delta questions

Can you link a bone pose delta to a CAS object?  I'm trying to set some bone pose adjustments that will only be active when certain CAS objects are selected.  For instance, to lengthen the lower leg when wearing heels (instead of it being shortened as default) or adding shoulder pads or spanx to an outfit that wouldn't require making a new mesh.  Or can you create a new CAS object that can be used as a switch to turn the bone pose delta on and off?  
Is it possible to put age/gender restrictions on a bone pose?