Lotus notes concatenating filed values using formula language

I need to concatenate two field values into a third field in lotus notes. Both the field hold multiple values which are separated by either comma,newline,semicolon and one of the field is name type and value populated from address book. The third field is of type reader.

Solution: Lotus notes concatenating filed values using formula language

If you simply want the third field to contain all the names from both first and second field, then it's easy, simply use:

    fieldName1 : fieldName2

as a formula for the third field.