In the various requests, I understood that the link between groups and activities was relatively “weak”... nevertheless, they are “logically” grouped under the same concept in Enoria and an activity cannot exist without a group. My use case is as follows: we manage catechesis in Enoria, we have a group bringing together all the registrants. Cat groups are formed from recurring activities because they change every year (but basically the problem would be the same with several groups). Logically, parental authorization to leave (alone, accompanied or not) and image rights information are stored at the group level because they depend on catechesis. Unfortunately, they do not go back to the level of activities, so my catechists do not have access to them (except to give them access to the full group or to re-enter this data). To solve this problem, I see two possible options: 1) would it be possible to bring up the additional fields of the group in the activity? : for the people in the group the value comes from the group for people outside the group, the value is entered when registering in the activity 2) the concept (1) can be complex from a user experience point of view, in which case, would it be possible to add an option to restrict activity to group members, so the data could come back from the group?