The Fade-LED-Dimmer-RGB Action allows you to fade all 3 channels of the 3 Channel LED Dimmer at once. The first value in the action is incase there is two Dimmers currently plugged into the JNIOR. To change the first Dimmer you set the channel to 1, or 2 for the second Dimmer. After the first value, the next 3 values are used to set the Red, Green, and Blue channels of the Dimmer using percentage of 0 - 100%.