Picore: chosing the lms server

Hello,
Where do you choose the lms server ?

I just started to run a new server who is the copy of the one running my lms server and now
I have a picore player (3.11) who pick the new lms server on the new machine .
(New name and ip of course !)

I cannot find the setup for the lms server on picore.

Thx,
Pascal