Filter context is well witnessed in PivotTables. One example is, when you insert TotalCost for the Values location, and then increase Year and Area for the Row or Columns, you might be defining a filter context that selects a subset of data based on the given year and location. https://financefeeds.com/finery-markets-launches-stablecoin-trading-infrastructure-with-private-rooms-to-tackle-depeg-risk/