Filter widget based on datapoint values

By “group” here, I mean each customer’s ‘Summary’ dashboard would have this Big Number widget with the breakdown, or even distinct Big Number widgets for each severity. Or even a Pie widget.

So the dashboard would have the ##defaultResourceGroup## token which would then inherit through to whichever widget I choose.

That way, would I still need to call the API for a particular group’s alerts? Or could I just return them all and then the dashboard token does the filtering?