Bring back deleted panel in a curtain wall

[Narska]

How do I bring back a panel that I deleted in a curtain wall?

[Podolsky]

First enter edit mode. Then choose panel tool (grey square) and click on the deleted panel space - it will place new one, with parameters, set in panel tool dialogue.

[DGSketcher]

If you still have the panel class then just reinstate the panel in the opening...
https://helpcenter.graphisoft.com/user-guide/76563/

If you have lost too much critical data, you could try recovering a copy of the curtain wall from a recent backup file and paste it into your current file at the original location.

[Narska]

Thank you, worked.

Podolsky wrote:
First enter edit mode. Then choose panel tool (grey square) and click on the deleted panel space - it will place new one, with parameters, set in panel tool dialogue.