How to show a VALVE UDA in isodraft?

You can try by using the User Interface: Option-->Modify..
Then Component Tags button.
You can select :MyAtt on VALV

Hi, I need set to show an UDA for VALVE information in material list. for example, the UDA is :MyAtt
I tried to use command ATTEX (Isodraft Reference Manual, 2:13, 14) in option file

ATTEX ( ' MyAttribute: ' + :MyAtt ) ON ALL BRANCH MEMBERS WITH (TYPE EQ 'VALV')

after running iso, I did not see the result as expected. What's wrong? Can someone discrible how to use ATTEX command in a little bit details.


Thanks in advance