Please add an easy option to add column aggregates to Data grid 2 (as it is available in Data grid).
While the 'old' Data grid is lacking more and more behind, being no longer maintained (e.g. no Nanoflow actions) it is not really possible to migrate to the new grid due to lacking features.
This could be in the form of an optional footer row for Data grid 2 with extra Aggregate widgets that can be added there for this.