Hi:) If you look at the mw, you will see that some roles are sorted together. Coachman 1 belongs to this group:
Coachman 1 / Officer 2 / Attendant 1 / Adelmonte
And Porter 1 in this group:
Porter 1 / Servant 3 / Francis I
They don't overlap, so you can have all of them if you want:)