IR remote control for LE

I have this 871129219935 grundig IR remote control I wish to use on my LE 13 le potato.

The wiki has instructions - I don't understand what it is what I am supposed to do to get the remote working with LE. I have the keymap editor plugin, but can't seem to have the remote talk with it.

Can anyone please help with GUI instructions how to have this remote work with LE? Thanks!

Quote from smp

https://wiki.libreelec.tv/configuration/ir-remotes

Quote from vpnhunter

The wiki has instructions - I don't understand what it is what I am supposed to do to get the remote working with LE.

Can anyone please help explain in step-by-step, I do not understand those wiki instructions. Like, what do I do to get to /usr/lib/udev/rc_keymaps or /storage/.config/rc_keymaps. Thanks!