Can the search be limited to our space only?

check with Collier

If not, can we add a search box to the left nav panel which will search our space only?

check Notation Guide

can we search for pages edited before a given date (find outdated pages)?

posted question on Atlassian support wiki

not currently. Atlassian recommends extending the search and then filtering the results. More testing needed.

if a Space Admin limits page access to a group, can a Space Admin not in the group still see the page?

if a Space User limits page access to a group, can a Space Admin not in the group still see the page?

if a Space Admin limits page access to a group, are all children of the page restricted as well?

if a Space User limits page access to a group, are all children of the page restricted?

can links to other Confluence pages be restricted to only display to a specific group?

can links to outside pages be restricted to only display to a specific group?