I want to have a catagory tree with subs below it. I cannot seem to find or build this in the catagory / product page in Admin

What I want is simple

example I have Helmets (Generic) as the Top catagory under that is the OEM say Oneal or Bell, esentially it looks like this

Helmets Main cat
- Oneal - Sub Cat
-- Products for Oneal
- Bell - Sub Cat
-- Products for Bell
- HJC - Sub Cat
-- Products for HJC

Is this possible to build in ADMIN?