How do I track the URL Anchor tags so that the #hash appears in the Page URLs report, and in Visitor Log?
By default, Piwik PRO skips anchor part of the URL from tracking (the part after the #).
However, you can enable it in the Settings.
You can either do it globally for your whole website – By clicking the left upper corner Menu, choosing Analytics Setting and then Settings under Websites and checking the Keep Page URL fragments when tracking Page URLs.
Or per website – By clicking the left upper Menu, choosing the Administration, and then Websites & apps, selecting a given website and toggling the Keep page URL fragments when tracking.