Suppose I have a space FOO. In FOO, there are several pages:
FOO
- Page A
-- Page A1
-- Page A2
--- Page A2.1
--- Page A2.2
- Page B
-- Page B1
-- Page B2
--- Page B2.1
--- Page B2.2
Additionally, suppose that I have two groups. Users is the default group and has permission to view/edit all pages in the space by default. External is another group setup to handle a select set of contractors who should ONLY see Page B2 and its children (no other pages should be visible or editable).
Is there a way to set up the permissions within Confluence to cause this sort of behavior? I don't know that it is is possible without changing the hierarchy.