as per title, and per image bellow:

it is absolutely useless to have an option to enable Guest and IoT Network if they are NOT transmitted/extended by EasyMesh

we have guests up there and surprise-surprise we also have a lot of IoT devices up there and all over the place. whole point of having Geust and IoT Network is to unload and secure the main wifi network. it is unacceptable to not have an option to extend those too.

what if we want to connect IoT devices up there too? or what if we do not need Guest Network down there at all, only up?

therefore, make it happen to be able to select multiple (at least) 2,4Ghz SSIDs to be extended when establishing EasyMesh Network 

as things are now we can do only:

1. not use Guest and IoT Networks and have all devices and guests on the main wifi network
2. buy 4 more extenders to extend Guest and IoT Networks in two directions (UNACCEPTABLE) and even with those 4 more extenders they won't be part of EasyMesh
3. complain, suggest future request, wait and finally sell all TP-Link faulty products and move to other brand which supports such basic functionality