Card View is excellent when you are first deciding what your scenes will be. You can write a short note or two for each scene and lay them out, re-arranging them as necessary. As you notice a need for scenes to bridge or separate other scenes, insert a scene and just describe what it needs to accomplish.
As you start to flesh out each scene, you can continue to use Card View to see how the scenes work with each other. At any time while creating the script, if you want to see how the scenes are working together, switch to card view.
The top of each scene window has the scene number, how far it is into the script in time (assuming each page is exactly one minute), and the scene header. To change the header just click on the header text and edit.
The scene text is below, in the index card. There are no page breaks in Card View. Pages do not exist in this view. This view is per-scene. There is also no standard formatting. The left margin is based loosely on the script format. But all lines just wrap at the right so there is no horizontal formatting.
Card view can also be used to re-arrange scenes. You re-arrange scenes by clicking on the little icon in the upper left corner of a scene and dragging it to the new location you wish to place it at. When you do, the cursor is changed to a hand which will grab and drag the window. Press the left mouse button down and drag the mouse down to its new location. You will see a red bar showing the new location. This is where the scene will be inserted when you release the left mouse button. Release the button.
Card view is an excellent way to rearrange scenes. And at the same time you can edit the text in each scene. And remember, you can use undo if you change your mind about moving a scene.