Jo_Ann

You need to review and note the roof settings on the walls. Then you need to turn "auto rebuild roof" back on. That is the only way you will eliminate the bay window roof (with Suite). It will then be necessary to reapply the roof wall settings that you noted.

How did you "draw" your roof lines to begin with?

If you are asking about the manual dormer...search the knowledge base for manual WALL dormer.

Outside image, Dormer on the right is an "auto" dormer. Dormer on the left is the "manual" dormer. Inside the room, dormer on the right is the "manual" dormer, dormer on the left is the "auto" dormer. Both dormers require pitch and ceiling height settings to be adjusted, to make them work.

Depending on what you have, and what you want it to look like... A soffit or box shape might be easier to manipulate.

I know that YOU understand what you have, but maybe a pic would be a better visual display.

Is auto build roof turned on? Did you select the wall on floor 2?

Not understanding what you have or what you want to show.

Not enough info given.

On the 2nd floor, open the "open below" room dialog, and uncheck "ceiling over this room." Open the materials dialog and select the planking for the ceiling finish. Open the "cat-walk room" and follow the same steps.

??? Unclear what you did or what you want?

dormer example.plan

Maybe this will help.

I'm guessing when you mention "splitting walls", you are asking about the "wall break" tool. Read up on that. It would be beneficial for you to learn how to use the manual roof planes...BUT...this project can be done using the auto build roof function.