To start creating your drip campaign, you need to add in some emails. Go to the Email Messages section of your campaign builder window and click the "+ New Email Message" button.
Draft up your email here. You can import an email template by clicking the template button here.
Once you draft up all of your campaign emails, you will need to set the email to Live. click the green "Live" button to turn your email on.
you need to set the frequency of the emails. Next to the email title, you can choose when each email goes out. You can also see who the email has been sent to and how many are queued to go out.