I could use some help w/ ground crews

Im still mildly new to this game and I have been trying to manage 6+ planes but they keep getting mad. It is because I dont have enough ground ‘units’ (busses, cleaners etc) to give to the plane I don’t know how to get past 5 of them each, any help?


C’est ici que tu vas pouvoir acheter le matériel de maintenance pour tes avions.

(J’utilise google translate pour cela) comment puis-je obtenir plus de 5 de chaque est ma question car il dit ‘Max’ après que j’en ai 5 et ne me permet pas d’en acheter plus

Edit:
attendez nvm je viens d’arriver au prochain aéroport je comprends pourquoi je ne pouvais pas acheter plus de 5 xD

I sent you invitations from PDG and BRI for your INN airport. I’m going to do the same for your BRI airport so we can swap planes. (I also use Google translate)

question, do you have discord?