If you select an interim order within the MRO Interim Order Structure, you can release the structure starting on a certain level using the Release Structure command.
The interim order on the level that the structure is being released must be in state Created. In addition, the parent of this interim order in the order structure should be in state Released.
This will create MRO shop orders for all types of the interim orders in the portion of the order structure being released, i.e. disassembly, disposition, and assembly orders.