To add Columns to your Column Board:
- Open or create a Column Board.
- Hit the big "+ Add Column" icon.

If you can't see "+ Add Column, you've created a Grid Board whoops! Start again and remember to click "Column View" from the Layout options.
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This icon will always appear to the right of the last column on your board. You can add as many as you like.
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To see how to create a new Column Board, click here.