It would be useful to show data from multiple blueprints in a single chart based on property with the same name or based on number of entities per each blueprint. An example is: we have blueprints for Car and Plane entities with properties (along with other properties) called "number of passangers" and "owner".

Then we would like to visualize number of cars and planes in a single pie chart with "breakdown by property" set to owner or "number of passangers". This chart would then show us how many means of transport each owner owns.