If you click on a suggested frame or a sampled frame, the video annotator will load that frame and the mode will change to Nearest mode. Nearest will display 3 frames before and 3 frames after the frame you've selected. You can use the icons next to the play button to go forward or backwards 1-10 frames. You can also use the arrow keys. This mode allows you to navigate very precisely through your video and find the best frames to annotate.