Big buttons are the big deals — click a task to check it off, click again to undo. Drag a task into another section to change how big a deal it is. ✎ adds a shared note (where are we on this?). ☑ list starts a checklist inside a task — it opens like a dropdown, you can add items right in the open list, and the task goes green when every item is checked. Manage (up top) is where you rename, reschedule, reassign, add checklists, and delete. A task with no date and no repeat stays on the board until it's done.