You will always need to have a location ready when you wish to add new stations to the system. For that, you'll need a pool.

Click on "Stations" menu on the bottom of the page

then, click on  "+ Add pool or station" button on the bottom right of the page

A pop up menu will appear on the right side of the page. Click on "Add new pool" button.

A page will open and you need to fill in the details. Once the information needed is filled, click on the "Add new pool" button at the bottom of the page.