Multiple Assets in One Marker
Although normally you'll only have one asset per marker, you can just as easily have many assets connected to a single AR marker ID.
When the user looks at the marker, they'll see a list of the different assets and can choose between them.
If you've set up marker offset information, you'll also be able to place the labels in the correct location relative to your markers - this makes it possible to easily identify tightly-packed equipment such as servers or battery packs.
See other ARDI-AR Advanced Topics.