You can create checklist and checklist items in Trello without leaving Slack;
1. Use the /actioner command, and select Create checklist.
2. Actioner will prompt you with a form that includes the following fields;
Fill out the necessary fields, and Actioner will create your checklist items and updates the thread reply with the new checklist item.
To start creating checklist and checklist items in Slack;
Actioner turns the complex into simple, allowing you to connect apps and automate workflows on a grand scale, faster and easier than ever.