we have big problems working with books on indesign server. When adding or deleting documents from a book we often get the "user cancled this action" error. Sometimes this also occurs when simply trying to open a book with "app.open(File('test.indb'));". Is there a possibility to prevent this error like a flag that can be set? As far as we have analyzed this, the reason for that kind of error is that a user interaction is needed (like a popup with "ok and cancel-button" in indesign client), but there must be a concept how this can be handled on the server version of indesign?