Hi Eric,
RHS = Right Hand Side.
From the picture above it appears that the porch is not being recognized, otherwise a gable should have been created above it ? That’s why I recommend a temporary wall to be located where they want the gable to be produced. The picture doesn’t show any structure yet for supporting the porch entry. It doesn’t appear that a room name or definition for the porch has yet been created even though a slab is shown for the porch ?