--coherence-simulation-server: used to specify the program should run as a coherence Simulator.
--coherence-ip: tells the Simulator which IP it should connect to, using 127.0.0.1 will connect the Simulator to a local server, if one is running.
--coherence-port: specifies the port the Simulator will use
--coherence-world-id: specifies the World ID to connect to, used only when set to Worlds.
--coherence-room-id: specifies the Room id to connect to, used only when set to Rooms.
--coherence-unique-room-id: specifies the unique Room ID to connect to, used only when set to Rooms.
--coherence-auth-token: specifies your local dev authentication token, that you get from pressing the coherence Hub > Simulators > Run local simulator build > Fetch Last Endpoint button. This will change in the near future and no longer be a required parameter.
COHERENCE_LOG_DEBUGdefine symbol will let you see detailed logs. Among them are logs that describe which IP, port and such the Client is connecting to. This can be done in the Player settings: Project Settings > Player > Other Settings > Script Compilation > Scripting Define Symbols