I think you may be able to do what you want.
SoundBridge supports the SqueezeCenter as a server, and the SqueezeCenter has a synchronization function:
I have successfully connected my SoundBridges to SqueezeCenter on my network, and I liked the enhanced browsing functions (such as browsing by directory structure) but I didn't specifically try the synchronization function. The first time you try to connect your M1001 to SqueezeCenter, you'll be prompted to press the Brightness button to get a software update. This works.