Request developers of Home Assistant ZHA integration add some UI options to ZHA (Zigbee Home Automation) integration for performing Zigbee energy scan and cthe hanging Zigbee network channel.
https://github.com/zigpy/zigpy-cli/blob/dev/README.md#performing-an-energy-scan
https://github.com/zigpy/zigpy-cli/blob/dev/README.md#changing-the-network-channel
Both actions can today be achieved via zigpy-cli in combination with zha-toolkit custom component
https://github.com/mdeweerd/zha-toolkit
The reason why you want to do so is to first check which Zigbee network channel is the least busy/noisy and then change/switch Zigbee network channel if not already on the most optimal channel for you:
https://www.home-assistant.io/integrations/zha#defining-zigbee-channel-to-use
To keep the options in GUI simple perhaps only give offer a choice of Zigbee network channels 15, 20, and 25 in the UI (which practically all Zigbee devices support) in order to avoid interoperability issues?
https://support.metageek.com/hc/en-us/articles/203845040-ZigBee-and-WiFi-Coexistence
Regardless if give the option to choose any channel or only select between a few in the UI this feature would need a warning and explanation of what the feature does. Suggestion with example of warnings:
WARNING!
Do not change Zigbee network channel unless you have already performed a Zigbee energy scan and looked at what Wi-Fi channel your WiFi router/access-points are using, (note that the numbering of Zigbee network channels and Wi-Fi channels do not match so you need to look up the frequency uses in order to tell what channels overlap).
After you change the Zigbee network channel it can take a while, up to a few hours or more, before devices will reconnect. If you want to speed up the reconnecting process you can power-cycle your devices, however, the best is to wait to do so with battery-operated devices until your mains-powered devices have connected. If some devices do not reconnect then you will need to manually re-join/re-pair them, but you should never have to remove the device from the ZHA integration.