How does one set static ip's to devices on home wifi?

How about setting permanent device names?

Where exactly  do i find these settings within the web interface?

Is it within DHCP? Or is it bind mac/ip setting?

I would show some links pointing to the many examples ive read but when i do , tp-link home network community throws error about illegal link and i cant post thread...

If someone would be so kind, and spare a few mins to type some help it would not go unappreciated.

Please!