workflow oscript problems

Knowledge_Plaza_(KnowledgePlaza_(Delete)_2488838)

I have three very concrete workflow oscript problems, if anyone could shine some light on them... Using LL91sp1.1) assign step performerWhen a step becomes ready, a performer is assigned to that step, using the defined and assigned roles. However, when a script is connected to such a step, no performer is assigned. Even the performer parameter in a PerformerCallbackScript has a "?". 2) NodeReserve permissionWe have a script that automatically reserves a node (document) when a certain step becomes ready. It does not use the logged in user for the reserve, but uses a user assign to a role (say, user X). When ADMIN is the logged in user making the step become ready, the document is corrected reserved by X. However is another use (say Y) is logged in, than the NodeReserve call comes with an "no permissions for the specified user" error. But user X and Y have all rights on the document... ALL USERS have ALL RIGHTS on the whole folder and all documents. And indeed reserving the document in question for X using the GUI works fine.3) Due durationWe would like to modify the duration of a certain step based on an attribute value. So if in a workflow a step becomes ready, its duration should be set to the value of an attribute and the due dates must be recalculated. It seems that setting the due duration should be done using a new workflow type, however the documentation in the builder ends with that statement, but lacks the promised example.Thank you very much for any feedback.Tom