My problem is not technical but structural.
The idea is that users can submit an ad (to sell a car for instance) with entityForm, or webform.
To define the car to sell, I want a predefined list to avoid misspelled words.
The first solution I tested was to use Taxonomy like that:
I used "Hierarchical Select" and then "Simple Hierarchical Select" and even "Term Reference Tree" but my problem is still the same.
When I want to use a view to display the EntityForm Submissions, it shows the car in one column like that:
And I want it on 2 columns like that:
Brand | Model
Audi | A1
Audi | A3
Does taxonomy allow that and how?
Should I use a database table with another module?
Thanks for any help!