Here is how to add merge checklist power-up in trello
- First click on the "Boards" item in the left sidebar
- Then click a board in the workspace section
- Click on the menu button (three dots) in the top-right corner of the board
- Select "Power-Ups" option from the dropdown menu
- Click on the "Automation" category in the left sidebar of the Power-Ups window
- Click the "Add" button under the "Merge Checklists" power-up
- Finally click the "Add" button for the Merge Checklists power-up






