Read the Linked Topic, there is all what you need.
to Connect -> Take a new Resourcefolder, change the Key from 0101 to 0102 and Run 8.Worldserver.
In Coreserver you see the Keys "0101" and "0102" - in white highlighted.
Run Worldserver Channel 1 (0101) and Worldserver Channel 2 (0102) and Connect to Channel 2