Allow enabling fixed field splitter in grouping records
The XamDataGrid has functionality to fix columns to either the left or right-hand side of the grid. The UI for this feature is a splitter between where the fixed fields end and scrollable fields start. This splitter is currently disabled and hidden for grouping records, with no option to turn on. We have custom code to make our grouping records act and appear very similar to normal data records, so we would like the fixed field splitter to appear and behave the same in grouping records as in regular data records.. Please create a setting on the FieldSettings or FieldLayoutSettings property on the XamDataGrid to allow enabling and displaying the fixed field splitter on grouping records.