Advice needed for 7 switch/dimmer bank for home theatre room: best way to mix in LED strips?

The short answer is yes, but it does take some work and tinkering to use a scene controller like this. Here’s the relevant thread with great contributions from @sainsworth.

[OBSOLETE] Cooper Aspire Scene Controller RFWC5 and RFWC5D Device Handler [beta release]

You can use the RFC as a simple button device and let ST trigger the other lights/switches or dig into zwave association and scenes for direct control of zwave devices.