hello eweryone. I'm new in TP-Link (moved from Asus with Tomato soft, to test Mesh options) and have few problems with little advanced config my network

I have in my network
1x C6 v3.20 (as AP)
2x C6U  v1.00 (as AP)

1x AX20 v3.00 (as main router with DHCP)
2x old ASUS as AP where Mesh is not so important 

1. I can't set deferent HostNames in network settings to identify them

2. I can't set them into Mesh Network even if it is set to AP mode. In specs they all should support that option.
I used routers insted dedicated extenders because of ethernet ports that were not present in extenders and for emergency situations to change roles of devices (egz when main router fails, to change it with other on service time or when cabele between is broken to make separate network til repair connection).

@Support 

will be these aded in future updates?
Additionally I suggest to change lists (egz DHCP client) from paged to just one long table but not with separate scrollbars (just use main scroll from browser). Current views are very uncomfortable and messy. make it as simple as possible.

And question about AP mode. in these mode the WAN port works fully as LAN port or there are some kind of restrictions?