Use any of these variables within the above labels:
{source}: Full data-source title
{source_abbr}: Abbreviated data-source title
{theme}: Full theme title
{theme_abbr}: Abbreviated theme title
{section}: Section # within the data source
{episode}: Episode #
{reading_level}: F&P reading level
{worksheet_id}: Unique worksheet identifier
{current_page}: Page number within worksheet
{total_pages}: Total worksheet pages
{model}: Model identifier