Config wireless - standard and bandwidth

I'm not sure if it's possible to configure the standard and bandwidth to be automatic. Does OpenWrt support this? Basically, the standard and bandwidth would be automatically selected based on the environment. Configuring the channel parameter with auto mode should serve a similar purpose.

This is the default on basically all wifi devices - negotiate speed and protocol on connection

Detecting country code is possible, but it would take unreasonably huge space on the installation to be used only once in a life, like 3MB for IP to country or 3GB wifi to country (both are accepted by standards besides manual preference or accept-language from browser)

If you want templates "no better than wifi4" like with weak crypto and slow air protocols - you are welcome, wifi alliance certification requires TKIP and WPA1 to be absent from "default interface" like LuCI