Hello dear Allen&Heath team and dear colleagues,
I hope you are all doing well there!
+1 here for the Side chain and the Ducker! 
Would be an amazing improvement for the CQ product line if we are able to create side chain compression, or dynamic equalization (in case we need to open some space within certain range of frequencies). This means that we’ll need to have a dynamic equalizer.
For the ducked delay and reverb, we’ll need to be able to create per instrument FX channels.
Most often when I perform live with my band we are using Mono setup for restaurants and bar & dinner places, or spaces where the Stereo setup won’t work. In such cases the side chain compression / dynamic equalization could save the day.
I hope the team would make those important features available for those of us, who use their CQ line products!
Best regards!