It will be nice to have “Move to new house” button, HA should investigate Mac addresses of its integrations, and make map(mac_address, ip_addres)
When we moved to new house, we should connect all devices to wifi or lan, and press button - “Move complete”. And ha should scan Mac and IP addresses of devices, and update all integrations, using saved map.
This feature also will be valuable for parents, to setup HA and devices using only one button, if we will make present for them with HA and all devices.