Crystal Reports 2008 SP3.
We have an internal application used to create localized versions of Crystal Reports. We are able to access all text fields in the report except for Group Name formulas. It looks like they should be modifiable in a manner parallel to formala fields via ReportDocument.DataDefinition.FormulaFields, however the GroupNameFieldDefinition class accessible via ReportDocument.DataDefinition.GroupNameFields does not expose the group name formula.
Likewise, the Group object accessible via ReportClientDocument.DataDefController.DataDefinition.Groups does not expose the group name formula.
How can the formula for group name be modified via the API?