1.1.2 Update: Added the ability to turn Light 1 On/Off and made it apparent that you can dim the light by setting the "Light X State 0/1" parameter to something in between such as 0.5.

In the screenshot below, you can see the Dimmer being changed to 0.61 which "dims" the light from full on at 1 toward full off at 0.

Please note the updated .c3p demo file.  I had to update the parameter reference numbers due to adding the Light 1 State 0/1 parameter.