Grating: G. Efficiency missing tab.

Hello folks,

when implementing a grating in shadow 4, the "Basic settings/G. Efficiency" is missing the "Efficiency Parameters" we had in S3:

<img width="416" height="160" alt="Image" src="https://github.com/user-attachments/assets/8dc1104c-c19e-445d-8e48-589c75cee66e" />