For example: all my bed rooms have 4 can lights in the ceiling in addition to the ceiling fan's light. So each room has a ceiling fan and a square pattern of can lights surrounding the fan. I attached a pic to better explain.
How can I make 3 dummy can light icons that react just like the 1 real can light switch icon? I have tried dummy switches but they don't turn off the lights, just change icon status. I also played with slave settings, hoping that would link the dummty and real switch together, but I can't make it work

My goal would be to have 4 icons each that could trigger the can lights to turn on, dim, turn off, etc just like the one does.
What am I doing wrong? Thanks for your help!
PS, I created my floorplan using sweethome 3d (hint to US users-it is the only free app that I found which allows inches instead of fractions of a foot)