Delete Curtain Panel?

[alex.129186]

I'm putting an entry vestibule into an exterior wall. Both are made with curtain walls. The vestibule is centered on the lobby wall: half in / half out. But the lobby curtain wall glass continues through the vestibule! I've removed the lobby wall mullions but I can't get rid of the glass panels, which cut through the vestibule. Any suggestions? Please see attached image.

[dfriesen]

Select the panels, then change them to 'Empty System Panel' in the Type Selector dropdown box.

[alex.129186]

That's the trick - thank you!