Smart Checklist team is currently working to present a smooth and fast process of migration using Jira Cloud Migration Assistant (JCMA) tool.
If you are interested in becoming a beta tester, reach out directly to smartchecklist@railsware.com.
Please refer to this article for the details: Migrate checklists from Jira Server/ Data Center to Jira Cloud
For any questions or feature requests contact us: smartchecklist@railsware.com