Can you change the System/SCO ID?

Hi, I am using Lectora 2007 SP1 to build SCORM 1.2 compliant eLearning courseware.I was wondering if it is possible to edit the System ID field under the "Assignable Unit Properties" tab in the "Assignable Unit" properties window. The reason I ask is that this seems to set the SCO ID for the course (A001 by default). I would like to be able to modify this so that I can properly identify each of my eLearning packages on my LMS for reporting reasons (instead of every SCO being identifed with "A001".I thought about editing the imanifest.xml file myself - but unforunately the "A001" value (that again seems to come from the System ID field) is placed in front of a lot of things including HTML file names and HREF links. (You can't change one without changing everything). I am hoping there is an easy way to modify this.I might be missing something here - but any help would be greatly appreciated.Thanks for your help.