As I believe others have said, all the Yamaha products will allow this kind of processing!
I think you'll find that pretty much every single digital console on the market will allow you to do this, although their methods vary:
Yamaha: Check! (But channel must be in same group of 8 on M7)
Avid: Check! (But you may or may not need to use a plugin, depending on whether you need sidechain filtering only, or dedicated sidechain input)
Digico: Check! (Most flexible routing/processing of anything on the market)
Midas [powered by Behringer]: Check!
Behringer [powered by Midas]: Check!
Allen & Heath: Check!
Soundcraft: Check!
Thats pretty much everything right?