Hi implementing my usecases step by step. This one is about a subject wich will act in many roles and one role may be acted by many subjects, these meet in a "connect-table(an actor)" and I'm wondering what would be the best, most elegant way to make this editable. I'm displaying a single subject, the subject's details are editable and I'm thinking of a list with checkboxes indicating which roles are availabe and which roles are selected for the chosen subject. Is there any example of it? Or has anyone do it before, or are there other options like 2 selections lists one holding the active roles and one the available roles which can be moved from one list to the next?