Hi,
Still not quite sure I understand but I'll try answer as best I can:
From Admin Console, you can go to Publishers->Your Partner->Actions->Manage - which will log you directly to KMC.
There is no direct link from KMC or Admin Console to KMS because a KMS instance is not always present and is not mandatory in order to work with the platform.
In KMS' Admin I/F, in the top navigation bar, there is a link called "GO TO SITE" which points to the user facing KMS login page.