This read-create RowStatus manages tone plan table rows, though entries for system built-in tone plans are added automatically at startup and cannot be added, modified, or deleted by the user via this object. Administrators use it to create, activate, or remove their own custom tone plan rows, while understanding that built-in entries are immune to this control. For example, an admin trying to delete a factory-provided tone plan through this object would find the operation rejected, since only user-defined rows are actually modifiable this way.