How do I delete a tab in trello?

How do I delete a tab in trello?

To delete a board that you've already closed, first open your Closed Boards list. From there, you'll see a list of your closed boards, with a "Delete" button next to the "Re-Open" button for any board that you're an admin for. You can click on that button to delete the board permanently.

How do I delete multiple cards in trello?

Just authorize your Trello account, you'll be shown a list of boards, select one, them multi-select the cards you want and select the "Delete" action.