Reversed Flash / Inhibit button?

Hello there.

 

Is it possible to do a Reversed Flash / Inhibit button?

If so... How do you do that?

 

 What i want:  Lets say that you have a fixture on a master and then you press &Hold  flash

The fixture goes down to 0% intencity

When you release the button it goes back to 100%

 

/Thanks / Fredrik

Related