The core layer requirement in compound structures is no longer mandatory, making it easier to delete core layers or move layers outside the core boundary.
You can delete core layers or move layers outside of core layers to improve the default joins and support visibility control of finish walls and floors.
Best practice: To ensure the wall joins properly, move all the layers to the 'Interior' side if the wall is used as an interior finish, and make the 'Interior Finish Face' face the actual interior side. Apply the same rule for the walls used as exterior finishes.
For additional information, see Edit Layers in a Compound Structure.