In documentation group access is managed with frontmatter:
access:
site:
login: true
groupName1: true
groupName2: false
Why it is not a attribute
site:
groups: [groupeName1, groupeName2]
How to industrialize group access with page acl ? I mean there is no inheritance of access by default, or it is not possible to set defaut access to a page, or modify it dynamically through the form advanced tab in admin ui.