We are using custom variables in our Piwik 2.15 installation a similar way to this example: Custom Variable Case Study: Divezone.net - Analytics Platform - Matomo, to track which language our visitors speak and from which department and team do they come from. 3 custom variables, each having only a handful of possible values.
I would like to export these data as a widget to our main site, but in separate widgets. Ideally, I would like to generate one pie chart for each of the custom variables, showing, for example for the language: English 144, German 75, French 14, etc…
However if I select pie chart, I’m just shown how many of the visits had the custom variable, regardless of the value: Language 329 visitors; Department 329 visitors; Team 329 visitors.
Is this possible with Piwik?