Deleting old “Versions” of a document inside Numbers & Pages…

To delete all old versions of a document, open the document, navigate to File Revert To Browse All Versions… (opens Time Machine type versions view), select the most recent non-current version on the left, move the mouse into the menubar region to reveal the menubar (it's hidden in full screen view by default), navigate to File Revert To and notice that your choice is now Delete This Version….…