I've explained the controller objects a bit more here http://community.axoloti.com/t/how-to-use-controller-object/910
sorry, not in the manual, I added in 1.0.6 but have not got around to adding to manual yet.
we do need an example as well. i'll see if I can get time to do either a program change to either do preset or patch loading as an example.
(I developed and was using this for the Push objects I was working on, but have not released, hence why I didn't have an example to include with the release)