Step 1. On the editor, click Produce
Step 2. Click Email Campaign
Step 3. Change Embed Location to Embed On WordPress & Send
Step 4. Click WP to download the plugin or Download here
Step 5. With your mouse, hover on Plugins
Step 6. Click Add New
Step 7. Click Upload Plugin
Step 8. Click to choose the downloaded zip file from your computer
Step 9. Click Install Now
Step 10. Activate the plugin if not activated by default.
That's it, You're done!