[Closed] Adding a rollout to controllers / motion panel

Is this posisble? It would be great to be able to edit spinners either on a controller’s properties (ala float scripts) in the track view, or on a rollout in the motion panel.

I haven’t seen it in the docs, or an example. Hopefully someone can prove me wrong!
Parameter collector is the closest thing I’ve seen, but I havn’t really investigated it.

Cheers,
Dave