How do I add or remove columns on a board?

To add or remove columns on a Hhola board, navigate to the board you want to modify. At the top of the board, you will see an option to "Add Column." Click on it to create a new column, and give it a name that reflects the task stage or category. To remove a column, click on the three-dot menu or gear icon for the column you want to delete, and select the "Remove Column" option. Be cautious when deleting, as removing a column will also remove all tasks within it.