One of our animators and I were just talking about this issue this morning. We decided that it makes sense to build an Octane Camera Morph with say, ten cameras, hook up the Xpresso nodes, and save it out as a full camera rig for easy re-use. It should be easy enough to trim out any extra cameras as needed in future scenes.
Alternatively, you can save just the Xpresso network as and Xgroup, then drag-n-drop the appropriate elements onto the node place-holders.
Camera Morph is one of those things I often forget about until I've already wasted too much time fiddling with a bird's nest of f-curves trying to get the move to behave. "This move should only take four or five key frames...." and an hour later there's still a funny little camera wiggle half way through the shot. I should have just Camera Morphed it from the beginning!
Technical Director - C4D, Maya, AE, - Washington DC