@medeek said:
The Triple Casement window option is probably what you are looking for...
Thanks for the quick response. I didn't think of using the Triple Casement option because we would not actually be ordering casement windows (this is for a set of windows that are very high on the wall and completely inaccessible to operating). However, it does the trick in terms of getting the look. Thanks for the tip!
PS. We are going with Andersen 100 Series. For some reason it appears that the picture window frame is significantly larger than the hung sash frame, for some reason? The Triple Casement match the hung frame size, which will be totally fine for our purposes. Thanks for the tip!