In the Menu Bar, click Edit > Preferences, then on the left side of the dialog box, select Rendering > Cluster. After making any changes, press Apply and Save to save them.
This section contains options for setting the cluster client defaults for config files.
This section contains options for setting the cluster client defaults for consumption-based licenses and licenses for the host.
Enable cluster mode and enter hostnames to be used to render the scene. The default is localhost.