If you want to create a new radio station from your account, here is how to do it. 

From your station's main page, click on the avatar at the top right and then select "Accounts".

accounts - new station

You will be re-directed to a new page, showing you the stations, shows and networks you own and an option of adding a new station.

Click the "Add New Station" option.

Add new Station Button

 This will take you to the billing path, where you can set up your radio station and prov your billing info. You can choose the monthly or yearly plan for the station.