How to work with language based metrics and filters
To toggle the "Language" column on or off within a report, navigate to the Rankings section of the report, then click the "three dots" icon that appears when hovering your mouse over the table widget.
From there, tick the Metrics dropdown menu and look for "Language".
To filter a rankings widget by language, click the "three dots" icon as described above, then click the dropdown menu that says "Search Language". Finally, select the language to filter from the dropdown.
Be sure to save your report when finished.