Use boards in Files/Projects to move tasks between Open, In Progress, For Review, and (if visible) Completed.
Open File Details > File (Kanban) or a Project Kanban board.
Drag a card from Open to In Progress (optional step).
Drag to For Review or Completed (based on your permissions).
If Hide is on, the Completed column is hidden; toggle Hide to show it.
If a move isn’t allowed, you’ll see an explanatory message.
Notes
The board adds an In Progress column and keeps one sorting order across columns.