Allow custom aggregations in pivot tables and 3D maps
Add the ability to create custom aggregations in pivot tables as well as in 3D Maps.
This was a suggestion at our recent Seattle User Group Meetup.
Kenneth Barber commented
Power Pivot lets you write your own aggregations (measures) using the DAX language. It is tough to learn, but it works well.
Martin East commented
If you can't have custom aggregations, then at least add TEXTJOIN to the list of standard aggregations and allow text values to be displayed in the aggregation cells