Hi,
Is there a way to bake/delete only certain kinds of an objects construction history? or one specific action, like i.e. an extrude that u want to bake with the object but not all the rest of the history ?
Under certyain conditions yes.
Example youve reigged your caharacter but have modelling left in the begging then just insert a apropriate shape inbetween break the connection after its redrawn and delete teh older nodes.
Collapsing something in mid history is not in general possible, altough if no tropology changes occour then it might be able to be collapsed to a single tweak.