Make a 2D fill static

[Isadora Almeida]

I need to create a trim using a surface and a fill that corresponds to the surface on 3D.

 

The only way I could find to make the 3D surface work was to create a morph. (if it was a wall when I moved, the surface moves too)

But on elevation the fill still moving together when i try to move the morph, even if the 3D is correct

Does enybody know how I could do the 2D fill became static?