If you already added a website, but you want to add another one, you can do that simply by clicking your current website name in the left upper corner of your dashboard.

A new window will appear:

In this dialog, you need to add a website name, as well as connect an initial PPC account for this website.

1. Select your advertising platform
2. Select a method of access for the selected platform (This is a list of all connections managed on the PPC access page)
   
3. Select a PPC account you want to add to your website from the dropdown list
   

After this, your website will be created and the PPC account added will be initialized automatically.

Note: You can't add a website without a PPC account.