The Fade-LED-Dimmer-RGB Action allows you to pick which 3 channel dimmer is being set with the first value in the action, this is incase more then one is currently plugged into the JNIOR. 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%. Lastly, the amount of time for the channels to transition to those percentages is set in the last value field of the action.