It would be very nice if multi selection works with drill down dimension.
For example:
1) I have field - City and field - Shop
2) I create drill down dimension with those fields with name "dFields"
3) I create treemap with dimension "dFields" and limit top 5 items
For now i see in this treemap visualization top 5 Cities, i can chose one City and it changes visualization to top 5 Shops for this City. But if i want that my treemap shows top 5 Shops for all Cities or for couple Cities, i cant do it with drill down dimension.
Thank you for your feedback on ways to improve our product. That would probably call for another group construct as the default behavior of drill down is select to expand.