Here is how to add card approvals power-up in trello
- First click on "Boards" option in the left sidebar
- Then click a board in the workspace section
- Click on the "Board" tab in the bottom navigation bar
- Next click on the "More" menu button (three dots) in the top-right corner
- Select "Power-Ups" option from the dropdown menu
- Click the "Add" button under the "Card Approvals - Tiny Power - Ups Club" power-up
- Finally click the "Add" button in the confirmation dialog to install it






