There are lots of great suggestions here about possible improvements to the user interface. But none of them are going to satisfy everyone’s needs.
Let me suggest that any data that can be visualized in the UI should also be available for export, probably as an XML file. That way, if a user wants to visualize or analyze the data in a way that is not supported by the app, they can import it into Excel and process it in any way they want.
This is a follow-on to my previous suggestion:
Export configuration and activity report as a file