(and because the documentation is done... I can't check)

That's not possible. If you want to have a catalog at the project level, you may need to deploy a custom catalog ( (e.g., Chartmuseum) in one of the namespaces within the project and set up appropriate permissions. If you want to do that at scale, you can use Fleet to deploy Chartmuseum's Helm chart.

OK, thanks for the answer. It's a pity. Because we have got a Harbor where our collaborators pushes helm charts in their projects. They want to use their project repo in their Rancher project. They are not Rancher Admin, so I need to add, one by one, the catalog.