code: public MoveOnValidHandler addFieldSeqPair(int iDestFieldSeq, int iSourceFieldSeq, boolean bMoveToDependent, boolean bMoveBackOnChange)
      {   // BaseField will return iSourceFieldSeq if m_OwnerField is 'Y'es
          return this.addFieldPair(this.getOwner().getRecord().getField(iDestFieldSeq), m_record.getField(iSourceFieldSeq), bMoveToDependent, bMoveBackOnChange, null, null);
      }
docs: Add a destination/source field pair (on valid record, move dest to source).
  @param iDestFieldSeq The destination field.
  @param iSourceFieldSeq The source field.
  @param bMoveToDependent If true adds a MoveOnValidHandler to the secondary record.
  @param bMoveBackOnChange If true, adds a CopyFieldHandler to the destination field (moves to the source).