The most common question customers of our Prusa MMU2S multi-material enclosure ask is where to put all of the stuff that comes with it: a filament detangler and five spool holders. In a sense, there's no difference between an enclosed MMU2S Prusa and one that's not enclosed. You still have to lay the spool holders out horizontally, which takes up a lot of real estate space.
For businesses and schools which don't have time for a DIY solution we now offer a version of our 3D printer cart with a custom holder for the filament detangler. The filament detangler holder and spool holders fit on any 20x20 aluminum extrusion and are available on Thingiverse.