Client reserve ip, cant set the address

Router
1

I have a flint 3 and there is a reserve ip address toggle switch. But there is no way to type in the address I want the device to have. There is an edit button to change the name of the device and the type.

Can we add the following to the edit gui:

reserved address. Eg 192.168.1.2

multiple network names(comma seperated list?) eg: media, media.lan, update, update.lan

2

ive tried setting it up through luci, but that doesnt work

3

You can set IP reservations using the DHCP section:

4

Hi

And here to edit the host file (custom domain name and IP address resolution).