Graph to allow more than one field on x-axis

Graph to allow more than one field on x-axis

Consider a DB capturing the turnover per week in four different regions: Fields are Region, week and turnover.

I would like to be able to create a bar-graph showing the turnover (y-axis) per region for the last 4 weeks (seperately).

That means that the x-axis box in the edit view of a DB graph should allow more than one field and that the order determines whether you will see weeks per region or regions per week.

Thanks for a promising app!

Aloys