How do I add and remove cards?
To add a card, click a plus button on the right from the list name in which you need to add the card, type the name of your new card and hit Enter or click the “Add” button.
Click on a card to make changes. A popover window will appear on the right for editing the selected card.
You may edit the Card Title and Description from this window and also make other changes such as assigning people, adding a checklist, and so on.
You may delete cards by choosing this option in the “actions” section of Card Details.
A card may also be deleted by using Delete (or Fn + backspace for Mac OS) on your keyboard.