1. Changes the visibility of the side pane in the current window 2. Show/Hide the image gallery pane scroll buttons. 3. The side pane view to show in newly opened windows. 4. Show the photo of the sender in the message reading pane. 5. Contact preview pane position (vertical) 6. Whether to show maps in preview pane 7. Memo preview pane position (vertical) 8. Whether the image gallery pane should be resizable. 9. Contact preview pane position (horizontal) 10. Changes the visibility of the image gallery pane in the current window
