Sorry for my short fuse today...
The W Single Hung1 SE9 can have the brick mold/casement turned off, the interior/ext sills/stool turned off and the frame/sash dimensions adjusted to look like what you want - pretty much. At least in elevation/section.
Changing the frame width leaves the sash "floating" away from the frame. More bugs than I've seen in a long time... I can fake it by seting a negative sash setback in the Sash Frame parameters...
Stud Wall with Siding or Stud Wall as the wall type seems to work in my example composite wall. (Solid Wall gives odd extra lines in plan.)
I assume it is an enlarged plan, or a plan-view detail that you want to show the wrapped gyp board? I don't believe there's a way to get just the gyp (1 skin of a composite) to wrap into the opening. A great wishlist item, as this is so common.
I hope somebody else has a better solution ... I got the gyp to show properly in the screenshot by using the Patch tool. Having created one patch (2D GDL symbol), it could be mirrored onto the other side of the window ... or all similar windows. But, being 2D and not associative (i.e., a crutch), the patch has to be manually moved or updated as the window openings are changed. [The composite shown below is 1/2 ply outside and 1/2" gyp inside.]
Hope that helps,
Karl
One of the forum moderators
AC 28 USA and earlier • macOS Sequoia 15.2, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB