Confluence: query data from different space with {content Reporter}

You can use the {content-reporter} macro (provided by the commercial Customware Confluence plugin) to access pages in different spaces, but you need to
Add "space=<space name>" to the {content-reporter} parameters

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}