You can use the {content-reporter} macro (provided by the commercial Customware Confluence plugin) to access pages in different spaces, but you need to
  1. Add "space=<space name>" to the {content-reporter} parameters
  2. Add "<space name>:" in front of the page path in the scope parameter
to make it work. Example to query "somefield" from all child pages of "ParentPage" in "THESPACE": {report-table} {content-reporter:space=THESPACE|scope="THESPACE:ParentPage" > descendents} {text-filter:data:somefield|required=true} {content-reporter} {report-column:title=somefield}{report-info:data:somefield}{report-column} {report-table}