On another forum I saw person with 74 led bulbs (40 & 34) on two circuits controlled by two switches. The person wanted to move to ZWave dimmers but of course each segment was far too many for a dimmer (150W max).
I was thinking you could use your 4 way virtual dimming scheme to overcome this? Split the segments down to a few 150W sections of LED lamps. Put a ZEN72/77 on each segment (master in original switch location and slaves wherever practical, even hidden). Then using direct association couple the segments you want to act as one together. When you control the master and all the slaves will follow. The load is balanced across the master and slave dimmers but the control is via the master.
I think this should work? You can hide the extra dimmers in a utility room or closet as they will never be used directly just the original location switch can have the “master” ZEN72/77 which in turns controls the others.
Might be a way to load shed a large number of pot lights but give the appearance of a single circuit. Call it something like “Virtual dimming for large LED light installations”.
Any reason this wouldn’t work?