1) Wat is the difference between the following two expressions? 2) And which one is best suited to write an XPath constraint so that the user can only edit (write) his own attributes? [id = '[%CurrentUser%]'] [System.owner='[%CurrentUser%]'] Final questions: 1) What is the 'id', where can I find it in the Modeller (is it 'SessionId'?)? 2) And same question for '(System.)owner'? Thanks! Joris
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