I do not know what you mean.
To create a structure mesh with hexahedral elements on the STL wing, it must be blocked like the initial geometry (before optimization).
My initial geometry was a solid body that I subtracted from the air domain and blocked it by ICEM and then created a structure mesh with hexahedral elements on it. Now, how can you create a structure mesh with hexahedral elements on the obtained STL geometry?
If photos or information are needed, I will send them.
Regards.