Once you've logged into Mailchimp, click on Reports in the dashboard's navigation.
Select the Automation link under the reports header
Click Set up an Automation.
On this screen you can click a category tab to find and choose the automation you want to use.
Or you can select Custom to Create an Automation from Scratch.
Now Give your Campaign a Name.
Select the list you would like to email from the dropdown
Then select the Begin button to start working on your new automation.
Please check screen width and height.