Cick New in main toolbar.

Click close button of the board you like to close.

Double-click on board name.

Enter new name for board.

Press Enter to confirm or Esc to cancel.

Click on the tab of the board you like to select.

Press CTRL + Tab to select next board or CTRL + SHIFT + Tab to select previous board.

If all boards don't fit to view, you can scroll through board tabs using and