code: public void setEnabled(boolean bEditing)
      {
          super.setEnabled(bEditing);
          for (int iFieldSeq = 0; iFieldSeq < this.getSFieldCount(); iFieldSeq++)
          {
              ScreenField sField = this.getSField(iFieldSeq);
              if (!(sField instanceof ToolScreen))
                  sField.setEnabled(bEditing);
          }
      }
docs: Enable or disable all fields.
  @param bEditing If true, enable this field.