The oddest thing is that you replied to a post there is more than a year old… and pointing towards an article you have authored by yourself, which not really added anything to the other answers seemed strange to me.
Editing XML files is not a trivial job if this should be done efficiently, there is really not any quick fixes here if you don’t have programming skills.
I maintain all lab computers at our University pointing to the same folder on each machine since we don’t provide common server facilities for student work. All lab computers are being reinstalled once a week, meaning everything needs to be made in a way so the lab computer settings are set by programmed functions. However, the way this is done will be the exact same way you need to do it in a server located environment.
Since the XML file is user-driven this means that you need to edit every user-driven XML file. That is a huge job if you don’t know how to do this by coding. The help from your article has a very limited answer since no real implementation of this is provided. It is an answer that raises more questions than it answers.
I strongly doubt that common users are familiar with editing XML files. If they are, then they would know that this was the way to do it anyway and that it will include coding on another scale than just notepad editing for a company or server-based solution.