You can use the default property to specify a default server in the server-list section. Valid values are true and false.

The following JSON configuration file example shows a default server.

{
  "broker_list": "
      {
          \"settings\": {
              \"server-list\": [{
                  \"server\": \"123.456.1.1\",
                  \"description\": \"View Server 1\",
                  \"default\": true,
                  \"username\": \"User1\",
                  \"domain\": \"TestDomain1\"
              }]}
       }"
}