How do I backup all the configuration that I spent so much time on finding out which ip address/mac address was what device and then naming them?  I have almost 70 devices, including Alexa devices, TVs, computers, home automation, etc...

I logged in to the router and only see the options below under advanced.

Status
System
Firmware Upgrade
System Log
Time Settings
Reboot
System Parameters

I found the following link but it looks like that may be for a different TP-Link router https://www.tp-link.com/us/support/faq/2015/

Thank you