Ok, so I should have done an error somewhere, because my form is bugging when trying to add a new file (I do not have the correct button).
Anyway, I have a strange behavior: if I have set an attribute and values for a category, I have the drop-down attribute-list for ALL category (it is not populated just for this particular category, but for all category).
If I have categories: Cars / Airplanes / Trains and Attributes "Color" (for Cars only), the attribute "Color" is populated for ALL category. Is this normal ??
DV