How to identify Custom Integration Code for Field Service Integration?

Summary:

We have a need to add custom statuses to the Field Service Work Order. After Field Service completes the work order, it should go through a Review Process. To achieve this we want to add custom statuses like "Pending Review" and "Review Complete".

However, the integration code ORA_WO_INT_OFSC is frozen and new statuses cannot be can be added.

We can create new custom integration code XXORA_WO_INT_OFSC the Work Order screen does not trigger integrations to get Work Area. It appears to be associated with the integration code ORA_WO_INT_OFSC.

Is there a way to mark a new custom code XXORA_WO_INT_OFSC for supporting field service integration?