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Click Explore in the left menu bar or open a query in Explore.
Create a query that uses an aggregation.
Add a Filtered to or Split by condition as needed. The list of available options is as pictured:
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You can access flows in aggregations in a simple aggregation, in filter or group by, or in a nested flow. You cannot access flows in a prefilter/wiki/spaces/ADMIN/pages/1302496836.
More information
When you use information from a flow in an aggregation, you are bringing a flow scope property into an event scoped query. For a discussion of scope in Scuba, see Understand scope.