This is even more confusing than earlier.
I am referring to this category; for example, the “transformation and innovation UK” category has nothing to do with the group’s activities. There is no connection, and I simply want to include in the “category” tab all topics created by group members and owners that concern the group. Therefore, I think it might be more appropriate to create a category so that exchanges occur exclusively among them, providing a space where they can communicate and share only with each other. I want a private group, so if I create a category, it will not be accessible to other members.
I apologize if it takes me a little time to understand; that is why I wanted to communicate in French.