Atreus gel pad wrist rest recommendations

Now that I’m equipped with Model01 on my 2 mains computers, I will surely use the Atreus only for nomad usage, so mostly without accessories.

But if I had to use it in one fixed place, I surely add the palm rest.
Here you have some place for any gel pad, and maybe cutting something like on this thead ?

By the way, I don’t know if the Keyboard.io Atreus is meant to be fixed to the Palm Rest, or does the pad lay hidden beneath the keyboard, making easy to go by ?