I saw at LEAPEurope 2018 a slide regarding reporting, and specifically charting.
The idea of being able to sort data as a "Free Sort" would be perfect.
Here is a use case from us. The chart on the left is using standard statuses from Workfront (in alphabetical order), while the report on the uses custom fields that we numbered to get the ideal order.
However Management wants either all the Reds on the Bottom, or all the greens on the bottom. We don't want to change our custom fields.
Therefore, free sorting of data points would solve this: