After creating an automation, you may want to change the order of the messages based on your needs. In order to do that, you can:
Navigate to the Automations page and choose one of the automations.
Under the "Emails" sections, you can see that each email has a Settings button. Click on it. In the screenshot below you'll also see the current order of the messages.
3. Next, you'll need to change the Sending schedule of the message to one that is longer than the next message (or shorter if you'd like to move the message higher in the order).
4. Make sure you click on the Save settings button and then you'll notice that the order in your automation has changed: