hi rob,
to view the structure of a sharepoint online site, you may click the content and structure under site administration. to do that:
1.let the site admin log into a sharepoint online site(the root site)>click the gear on the upper right corner>site settings.
2.under site administration, click content and structure.
note: if you couldn't find the content and structure, please click site collection features under site collection administration> find sharepoint server publishing infrastructure> click activate
if there is any update, please let us know.
thanks,
felix