Have you tried VIZZable for M4L (not sure if you're using ableton). http://zealousy.com/2013/04/vizzable-2/
seems like you can have as many channels/mixers as you want as well as a drum machine type bank for clips. in the download folder there's VIZZable.IN.syphr.amxd and VIZZable.OUT.VIEWR.amxd which allow for syphon input and output. i think it's only max 6 compatible though.
I'm new to this max business but I got it up and running (sending syphon to M8, MM etc) in no time thanks to the tutorials on that site.