The main challenge with addressing this request is the problem alluded to here
Basically, what gets shown on a view is determined from a query of the backend, based on the (front end) view settings: “Show me Tasks completed last month that were assigned to me, and group them by Product Area”.
The formula service in Fibery works solely in the backend - it knows nothing about what views might or might not exist.
To inplement this request would require a front end formula service that calculates based on the result of querying according to the view settings.
We currently do some basic calculations in table view (Count, Sum, Max, etc.) for numeric columns, so perhaps there is something analogous possible for board view, but it’s not in scope for the foreseeable future.