My Deco mesh is interfering severely with my Zigbee smart home devices. Deco's "wonderful" automated system stubbornly keeps forcing the 2.4 GHz network to channel 11 even though it's pretty much the worst choice possible for my network. 

I'm astonished that you can't have a very basic functionality like choosing the channel manually on devices that actually cost quite a lot of money. But as that seems to be beyond TP-Link's engineers' skills, is there any way to fool the underwhelming automated process to make a less idiotic channel selection?