Since Zebra BI 2.0 you can insert Zebra BI charts from data that is not necessarily in a single block. Essentially this means you no longer have to create separate tables that have correct data structure for Zebra BI charts.
Inserting Zebra BI charts from multiple ranges is really simple: just select all desired ranges by holding Ctrl key between selections and then insert a chart normally.
Watch the animation below to see it in action:
Note: The only thing you have to remember here is to ensure all your ranges have the same length, otherwise the charts can't be inserted.