Keyref

Hi,
 
If I have an attribute of the type NMTOKENS is it then possible to define
one or even different keyrefs for the positions in that list?
 
Regards,
Hans
 
_______________________
 
Hans Teijgeler
co-modeller of ISO 15926-2 <http://www.infowebml.ws/ECM4.5/ECM4.5.html> 
author of ISO 15926-7
visit  <http://www.infowebml.ws/> www.InfowebML.ws
phone: +31-72-509 2005
e-mail: hans.teijgeler@quicknet.nl
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