The Send Email step lets you send an email to your prospects as a part of your Automation flow.
Create an email
Open the needed automation and click on the plus sign to select the Send email step.
Create the email using the text editor panel of the right side.
You can use variables in the subject and the body of the email.
When creating an email, you can add a new Template to use it for other emails and automations.
Note: Don't forget to click the Apply button to save the changes!