Fader control of independent

I want to use a fader to control a non-intensity ‘effects choice’ parameter so it is independent of the masters. The only way I can think of doing this is if there was an option to be able to assign one of the master faders to control the level of an Independent. The fixture has so many inbuilt effects that it is nigh on impossible to select using the touch screen swipe or a film strip.

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