Master intensity fades all fixtures that have an intensity channel defined.
See: Fixture Creator - Lamp Configuration
The fixtures can individually be excused from the Master intensity.
This can be done when adding the fixtures see: Adding and Removing Fixtures in FreeStyler
The master intensity panel has a fader and some buttons.
The fader is used to set the light intensity level to a well defined value.
The buttons are used to set the intensity to 0% or 100% by one press.
“Fade In” and “Fade Out” are as the name says - used to make an intensity change with a time dependency so the light intensity changes slowly.
The time is set in the entry-box bellow Fade buttons.