[Pharo-users] Group and member with Voyage

Hi all, Let's say I have a class Group and a class Member. aGroup has many members. and aMember can belong to many groups. What is the "proper" voyageDescription for those one to many relations? Should I do something extra? Everytime I add a member to the group, both the member and the group get their references updated. Now when I add a member to a group and save it, I also save the member. Is there another way to avoid this? Any recommended practice for this? Next level question: What if it gets composite? it is... a Group has other Groups as members :) Regards! Esteban A. Maringolo