Hello everyone! I received this 3D model of a component. 

I have issues with the IDC_Piastra per top vetro, a boomerang shaped component. The issue is that a symmetry element appears in BOM. That's because it is outside of the 3D Shape...everything oustide the 3D shape is considered part of a BOM.

Is there a way to move that "Grano Filettato M5 L30 MM" inside the 3D shape? I tried copy and pasting, manually moving and reorder tree, but it won't budge. 

Do you think I should re do the symmetry from scratch, using the old one as a base? Please let me know. Any help is appreciated.

TIA