So I finally got the electrician to come by the house and fix the wiring so that the In-LineLinc Dimmers had an unswitched power supply. With the correct wiring, it was easy to get the virtual 3-way by adding a button of each of the KPLs as a controller and the 6 In-LineLinc Dimmers as responders.
Now, as specified in my first post, I want to create 4 mutually-exclusive scenes:
A. 3 back lights 100% on level
B. All 6 lights on at 100% on level
C. All 6 lights on at 50% on level
D. All 6 lights on at 20% on level
To do this, I've added ALL buttons (for both KPLs) and ALL 6 InLineLinc Dimmers to each of the four scenes.
For each of the scenes, all of the buttons and dimmers are responders, except for the button controlling each scene. For example, for scene A I have the following configuration:
CONTROLLERS:
KPL1-A
KPL2-A
RESPONDERS:
KPL1-B - 0% on level
KPL2-B - 0% on level
KPL1-C - 0% on level
KPL2-C - 0% on level
KPL1-D - 0% on level
KPL2-D - 0% on level
InLine-back-1 - 100% on level
InLine-back-2 - 100% on level
InLine-back-3 - 100% on level
InLine-front-1 - 0% on level
InLine-front-2 - 0% on level
InLine-front-3 - 0% on level
and a similar configuration for the rest of the scenes, but with different on levels for the InLineLinc dimmers.
Everything works fine, except that when I switch from scene A to scene B by pressing button 'B' for the first KPL, buttons 'A','B','C','D' for the second KPL turn ON. The first KPL correctly turns off button 'A' and turns on button 'B'.
Any idea why the second KPL seems to be misbehaving?
Please let me know if I should start a new thread instead, since this is a slightly off topic.