It is now possible to define lesson metadata on a page level. Simply tick the “Enable page metadata” option at the bottom of the “Edit lesson metadata” page and the new option will appear in the lesson’s right-side menu – “Edit page metadata”.
Clicking on the “Edit page metadata” link will open the editor allowing you to edit each lesson page metadata with a full preview of the current page.
For more information, please refer to the relevant sections in mAuthor documentation: Managing metadata and Extended metadata.