Hello @DSVS ,   This is already available in accounts. You can do so by creating, and then saving resuable templates. You can then copy directly from the template on your Campaigns screen, or find it on the template selection screen while creating a new email. If you need to make edits, you do so, then save that new version. ... View more

At this time, we do not have a sentiment tracker functionality built-into the email builder. You'd either need to use a separate system to generate your own link tracking, link to a survey page, or insert a poll block.  ... View more