To push a single comment from the Jira issue to the related Salesforce object, you will need to:
Open up the relevant Jira issue.
Hover over the comment you would like to push to Salesforce. A set of icons will appear. Click on the icon and a pop-up will appear. If it doesn't, Refresh the page.
If the comment is already pushed to the related Salesforce object, a message will be displayed as follows:
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