125.29. The order referred to in section 125.27 may also contain rules amending, where applicable, the orders constituting the regional county municipalities affected by the transfer of territory. In the case of a regional county municipality designated as a rural regional county municipality, those rules may pertain to the composition of its council, its mode of financing, its fields of jurisdiction and the establishment of committees of its council as well as their composition, fields of intervention and mode of operation.