Scrolling Kanban app

There seems to be no way to constrain the vertical size of the Kanban app. It grows vertically depending on the maximum number of cards in any column. Resizing merely resizes the width and height of the app. I’d like to see the ability to size width and height independently with scrollbars appearing if the vertical space is too limited to display all the cards. Also, “archiving” cards in the Done column might be a useful addition; “done” items after awhile are not useful to display all the time.