A request has come in from a customer to have a funnel chart type which included drill down capability. I have explained to the customer that it is not current functionality but have submitted it as feedback in this topic.
I imagine the intended functionality would display a metric at the top of the funnel i.e. total errors -> then funnel down to say total 500 errors -> then say to total 500 errors in NSW -> then clicking on that would display the grid view of all the 500 errors for NSW users.
This functionality I Imagine would work somewhat like the summarize function does https://docs.microsoft.com/en-us/azure/data-explorer/kusto/query/summarizeoperator by taking total data and aggregating it to a simpler metric
Customer support service by UserEcho