To integrate Trello:
1. Click Add in the Issue Tracker field (top left).
2. Choose Trello. You will be redirected to Trello for authorization.
3. Log in to your Atlassian and Trello accounts if needed.
4. Read what information Ducalis requires and click Allow.
5. Trello integration is ready. It will appear on the Issue Trackers list.
When Trello is integrated, proceed with the issue import.