How to group multiple breakdown elements and aggregate the scores without rerunning score collection?

[Kaleb4]

I have a use case where I need the ability to group Breakdown elements into multiple groups. See the example below. The catch is that I do not want to create a new indicator or breakdown that would require me to rerun score collections and I want to be able to view the related records. I feel like there should be a way to define manually define multiple breakdowns for an element and then aggregate the scores. 

Using a breakdown widget I can manually specify multiple elements but I can't aggregate the score. And then I can't add a second indicator to the widget with a similar configuration.

I have all the data I need I just feel like the PA is not allowing me to setup this behavior.

Example: Number of open incidents with a breakdown on assignment groups.I have 10 groups. I want 3 of those groups to show up as one line on a widget and I want the other 7 groups to to show up as another line on the same widget.

Any ideas or help would be appreciated.

[Adam Stout]

I would create a new field that combines these together then add a breakdown on that (or perhaps you can get this via the parent field).  Then recollect.  That is the best option.

Barring that, create two formula indicators once that combines the first group and the seconds with the second group.

[Steven Slocum]

Create a new Breakdown using Bucket scripting to throw each of the assignment group values into 1 of the 2 buckets. You will still need to re-run collection just for that new breakdown.