Hi @lukasz-m, thanks a lot for this very detailed information. It helps me a lot and makes absolute sense. 

Hello community,our dam users missing the "create" button for creating viewer presets. As a admin, it works fine. They have a ACL on /conf (restr. rep:glob="/*/dam/dm/presets/viewer*") with privileges  jcr:read, crx:replicate, rep:write. I do not know whats missing or to troubleshoot this. Maybe som...