MBS lists a wide range of consultations, procedures, and tests, and the scheduled fee is the amount that the government considers appropriate for one of these services.
An MBS item is not editable, as it must remain static for everyone. If you need something specific, customise or create a derived schedule.
MBS Items, and items from other system-created schedules, like DVA, cannot be edited.
Only Items from Custom schedules can be edited.