Yes this worked!
I made my plain wall as the default segment with the Window/Wall sequence the evenly part.
In your videos your viewport gets updated as soon as you work in the style editor. I have to click with my mouse into the viewport to get the update and then back into style editor to make new changes.
If I stay in the style editor I see no result. Is there something I need to setup to make the instant viewport update of my changes work?