Hi,
The effect of combination of multiple different operators can be done through VFB History, with enabled original postproduction.
As I understand, the feature request is to be able to enable/disabled multiple operators at once, right?
I don't think this would be the best way to cover the intended behavior, but VFB 2 is in the plans and feedback on the UI/UX is welcome.
I also think over-featuring it (like being able to order operators, or group, maybe layering is the better idea, or foldering) not a good idea.
I will have this in mind for the discussions of UI/UX of the new VFB.