If you really need to somehow automate the creation of a MAR Info, then you can potentially do it by creating it from scratch through some coding. The MAR Info file is just a small XML file, so it can easily be recreated with some scripting/coding. You can create a MAR Info file manually from Workstation and then open it with a text editor to see how the XML is structured (you can use it as a template) and recreate a similar or identical XML (based on what the MAR Info will look like at run time).