RAM Frame Exposure - New Building Adjacent to Existing Building

I am creating a model of a building that is adjacent to an existing building on 2 sides, and exposed to wind on the other two sides, see snip below. There is an expansion joint between the buildings, so I am modeling the new building as a standalone structure. From what I can tell, RAM exposure categories only have two options - full or none. Is there a way to indicate that the wind only occurs on two sides? And that a parapet only occurs on two sides? Otherwise, it seems as if my lateral wind forces in the model are going to be double what they actually are in real life. Thanks!