Filter Document Type based on Authorization Object

Hello Everyone,

I have a requirement where i was asked to filter the document type based on authorization object M_BEST_BSA in transaction /KCP/2,ME21N, ME22N and ME23N.

When I create or modify a purchase order, I dont want  to be lost in choosing the PO type. I want the field EKKO-BSART displays only the values authorized for the user(me).

Thanks a lot