What is the desired functionality that you are missing?
As a User, I would like to group data multiple times (e.g. group by variable x, distribute by variable y, distribute by variable z, distribute by variable a) and visualize this in a table.
Which problem are you going to solve with this functionality?
Today it is only possible to group information twice (group by and then distribute by). Allowing more levels allows users to quickly identify and root-cause process bottlenecks.