This is very cool to see... I will consider adding a Modulex section to my LEGO Parts Guide in the future. Since it is a different 'system' than LEGO Bricks, Technic, or Duplo, and has very limited compatibility with those other systems, it will probably require a new top-level category.
(By contrast, it's reasonable to consider Znap a sub-category of Technic.)
---tom
(By contrast, it's reasonable to consider Znap a sub-category of Technic.)
---tom