I have an expression-based property that is used to identify some elements (fixed furniture of housing unit), formed from their home story and zone name they are in. Each story represents a single apartment type, and the story name is the apartment t...

Is there a way to get the total quantity of zones in certain zone category and use that integer in an expression based property? What I am after is calculating the average (arithmetic mean) area of zones of certain type, by dividing the total area wi...