Sometimes I wish to slowly fade and stop when desired en go back slowly.
For smooth mixing, controlling the t-bar fader with a mouse is not the optimal way.
It should be nice if there was a new api/shortcut for a smooth automated transition. (Autofader<speed>)
Controlling the t-bar from another device would also be easier because of the many web requests.

A PauseTransition command would also do the trick (second call should reverse the transition).