Yes I assumed all anchors would be tracked. Is there any way to track anchors within a page - or would there be - or is that something that Piwik does not and will not support?
Good question. I think it would make sense to provide an option for Piwik to automatically track clicks on anchors in the same page. feel free to create a feature request at: https://github.com/piwik/piwik/issues
The wiki does suggest that anchors work all round including when people bounce between anchors in the same page without reloading.
Do you mind pointing to the URL? I will try to improve the doc.