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After selecting Mergo icon. Select the Cateogy that says Mergo - Merge for Gmail 
Once you choose Mail Merge for Gmail. you should see the four headers appear on your Google Sheet
Email Address - This is where you put Place the Email Address of the recipients in this column
First Name - Place the recipient's first name only in this column
Last Name - Place the Last recipient's last name only in this column
Merge Status - Leave this blank
One of the options you will have available is choosing your Draft. You will also have the option to View the Draft
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Once you are ready to run Mail Merge, select Send Mail. Highlighted in Blue indicates the Daily quota which is would be 2000 Emails
After running Mergo's Mail Merge Campaign, you should receive a status update in Merge Status Column indicating , if the message was Sent or Opened
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