What are you using to "show" the D3 loads? Are you using a Simpl program to interface with D3 or are you using the UI generated from within D3 to a iPad or touch panel? If the latter, then you can edit the VTP from within D3 and on your buttons to control you can add the other lights to that button. At least last time I used D3 for generating a UI you used to be able to do that.?
