CAP bodytype

Does anyone know how to change the bodytypes (It seems the draft pics and CAP have different bodytypes) ie the CAP THIN is very thin while the draft pick THIN is somewhere between the CAP THIN and NORMAL

it looks to me like CAP THIN < DRAFTPICK THIN < CAP REGULAR=DRAFTPICK REGULAR < CAP THICK = DRAFTPICK REGULAR

so the draftpics thins arent that skinny, does anyone have an idea how to

1.assignt a CAP bodytype to a specific draftpick player
2. assign a draftpick thin bodytype to a specific CAP player


thanks