Retrieving row data in data grid for selectMany field - help needed with syntax

When using the event onRowSelect from a data grid, how does one retrieve a field's 'savedMany values' to another savedMany field; I presume we need to read in an array and iterate?

BO.F_SelectManyField2.setValue(rowData.F_SelectManyField1. ????????????????? );

Best regards
Stephen

BO.F_SelectManyField2.setValue(rowData.F_SelectManyField1.rawValue);

The select many requires a format of opt1__#__opt2, etc. You can see this in our documentation at https://help.hcltechsw.com/Leap/9.3.2/ref_jsapi_ref_data_objects.html

Search for the section on the Select Many.