Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
You can just specify a Window:Interzone object (reference) in the interior surface of the atrium the same way that you would do a window on an exterior surface. If you specify the adjacent zone and it will automatically generate the corresponding interior window in the adjacent zone.
As a side note to the geometry that you are showing, Energyplus won't like your non-convex surfaces(reference). You may want to correct it.
