Fade Time Fader

It would be very useful when we have a Fade Time Fader.
For example:
I programm a lot of scenes without fade time. Colors for example...
Sometimes you want to activate the scenes without fadetime sometimes with fadetime.
In combination with a Batch Master it is easy to handle. Or you want to use 2Step chases with and without fade timing...
At the moment I change the fade time with a macro. That is not so handy...
With a Fade Time Fader you can programm all your stuff with a base fade time. When the Fader set to zero, the cuelists and scenes are working without a fade time....

Greetings....