Curtain wall panel

[Sakha]

I tried to make one panel by deleting the frame between the two panels but it doesn't work and they remain separate, how do I fix it?

Operating system used: Windows 11

[CosminF]

Hi,

You can try to:
1. Check the scheme grid - you shouldn't have a line there so that Archicad knows you don't have a separation
2. Delete both panels and hold space bar (magic wand) and fill the empty space with a one-piece panel.

[Sakha]

how to add one piece panel to the empty space?

[CosminF]

Delete the frame between the two panels and they should join as one.