Enables or disables auto-enrollment for a Device Add-In on a specific database. When enabled, future devices that meet the Add-In's auto-enrollment criteria are enrolled automatically without manual intervention. Only reseller users can call this method. when is false, the auto-enrollment configuration (including any group filters) is removed in MyGeotab. By default the previously auto-enrolled devices remain enrolled; set to true to also unenroll them as part of the disable operation. The flag is only honored when is false; it is ignored when enabling.