Most of the parameters that appear on the screen can at that instant be altered via the corresponding "drawbar" slider, instead of pushing the usual number buttons. This includes the Brightness and Harmonics that appear when that page of the Voice Editor is displayed - if that is what you mean by Filters. But once the screen refreshes to a different function - like mixing console for instance, or balances, the slider assignments immediately become associated with those screens. (If you call up a style or voices page, the sliders don't have any influence on those).

So you can't program a drawbar slider to remain associated with a particular parameter once the screen refreshes.

John