Trackview Filter - Active controller

Hi Folks,

Does anyone know if it is possible to set the Trackview Filters to Show Only 'active' controllers?

There is an option to Show Only active Layer Controllers, but I have a few List controllers. It would be handy to display only the currently active controller in the List (in the way it is possible to show only 'Active Only- List Controller' keys in the trackBAR).

The TrackBar Filters also appear to be customizable, is this possible with the trackview filters?

Any help would be much appreciated,