Developer Acess

Hi,

I don't seem to have the ability to define a developer in my application. According to the documentation I can do this through the manage user section. When I click to invite the developer it says in the documentation to click "Developer". Problem is there is no developer option. Nor is the Choose developer option under the General tab as in another account I have.

I have an enterprise account so not sure why I can't do this.

How can I add a developer to my application?

Thanks