The facebook pixel page in the settings section of your dashboard allows you to set your base facebook pixel code. Simply head to your Facebook pixel account, select set up pixel and then copy and paste the code into the box provided. After you have entered the code, follow the instructions on this page.
You have the option to make this active by clicking on the tick box provided and you can find out more information by using the ‘Learn More About Facebook Pixel’ link at the top left of your page.
To save the code, simply click on the blue ‘Save Code’ button.