There are 2 methods you can use to comment on a ticket in GTJ:

Method 1

1. Click on the “J” icon displayed in the Chrome menu in the browser
   

2. Click on "Add Comment" and search for your JIRA ticket

3. Fill in the required field

Method 2 - To comment using an email

1. Open an email in gmail
2. Click on the 'Gmail To JIRA' menu
   
   
   

3. Click on“Comment from e-mail” and search for your ticket
 

4. Fill in the required field