Others have been kicking around the same or similar idea with varying degrees of success.
You might also want to take a look at:
resource.dopus.com/viewtopic.php ... b4df3dc31b
resource.dopus.com/viewtopic.php ... ection+xml
resource.dopus.com/viewtopic.php ... highlight=
I'm sure there are several other threads in this forum that approach this fundamental concept using different names and different methodologies.
This sort of thing is possible within DOpus if you are willing to write a plugin. I've been experimenting with options that will allow this without the need to write a plugin at all.