Category talk:Economy of Saint-Martin (France)

I tried my best to understand how to simply add (sub), (sub/sub) ... up to ... (sub/sub/sub/sub) categories, but I failed !
I had read all the Help pages ... All what "I should not do", but I just did not find simple instructions to quickly create a categories tree.
I may be brainless ... also please Help !
Don't try to explain me, but just do the job and create here the following sub/categories tree :

1. Tourism on ...
   1. Tourist activities on ...
   2. Hotels on ...
2. Stores on ...
   1. Shops on ...
   2. Supermarkets on ...
3. Banks on ...
4. Energies production of ...
   1. Power plants of ...
   2. Wind power production on ...
   3. Solar energies on ...
5. Public transportation of ...
6. Agricultural production of ...

Many thanks ... and a big kiss, --Millot (talk) 11:42, 17 April 2012 (UTC)