Navigating and Browsing Images
The image browsing functionality works much in the same way as an Internet browser. If you want to see images taken in the recent past (without going to the file menu), simply click the back button (green arrow buttons on the far left). In addition to this you can right click either arrow button to show a list of recent images. The arrow in the left margin shows which image is currently displayed. Clicking on one of these images will open it in the current image window.
Additionally, you can click the small down-arrow at the upper right corner of the image display area: