Subset of a data from the data table for a specific Use Case

Assign activity
Left: TableList | DatTYpe:List(Of DataTAble)

(From d in YourDataTable.AsEnumerable
Group d by k=d(“Change Request”).toString.Trim into grp=Group
Select g=grp.CopyToDataTable).toList

Then with a for each and a nested for each row you can process the groups and its members

also have a look here: