It's best if you MOVE the AFCAD (not copy), because duplicates AFCADs can cause problems, and you should only move the AFCADs, not the other .BGLs, otherwise the scenery will not work.
They are usually named AF*.BGL or AP*.BGL or AFX*.BGL. However, some sceneries use multiple AFCADs, one for the airport and one for the approaches, you have to move both. The naming is usually self-apparent.
