2bmccartney

A client has sent me plans the purchased but wanted altered. They want to stick with the exterior roof structure, but I am having issues raising the ceiling/roof over the study on the front the of this home. When I change the ceiling height for that room specifically, it changes the entire roof structure. It appears the original (picture provided) has a raised ceiling, or is there another method in Chief to achieve this look? Any suggestions on what I may be missing? Thank you.