If you have ScriptRunner add-on installed on your JIRA instance - set up it in the way, so when you change Issue Type - "Checklists" custom field's content automatically pre-populated to value you set up. E.g.: "definition of done", "acceptance criteria" and so on.
Copy from Email, Slack, Skype. Exchange and share checklists via all possible channels!
And that's one of the greatest benefits of Smart Checklist: it can be easily transferred and shared between teammates regardless of the channel.
Copy/paste checklist from Email or Slack/Skype note or any other communication channel to your JIRA issue.