Hmmm... no, this workflow could not be user-id/session specific since, when you saved a document using Raylight, you will update the document in the InfoStore.
About the opendocument feature, I found this documentation:
https://help.sap.com/businessobject/product_guides/boexir4/en/xi4_opendocument_en.pdf
Hope this will help you.
Regards,
Anthony