You can edit and delete a board in 2 ways.
On Boards find the board(s) you want to edit or delete.
Then click on ACTIONS right on the other side of this board.
Choose Edit or Delete and confirm your choice on the pop-up window.
2. On your Account, click on My Products, then on Boards.
Now choose the board you want to update.
Check the box on its left and choose Delete from the tabs on top of your boards' list.
A pop-up window will appear, and you need to confirm your updates.
That’s how you edit or delete an Board!