You can use the Google Admin console to configure Connection Sever settings on enrolled Chromebook devices.

You can configure a list of Connection Server instances, a default Connection Server instance, and certain server and client features.

When you configure a list of servers, the servers appear as shortcuts in Horizon Client. If you configure a default server, Horizon Client connects to that server automatically.

You configure these settings in a JSON configuration file. A Chrome administrator must use the Google Admin console to upload the JSON configuration file for the Horizon Client app. For detailed information about using the Google Admin console, see the G Suite Administrator Help.