Use arrows below to move to the next/previous frame. Use the scroll bar slider to scroll through frames. Almost every button has a shortcut. To get a hint about a shortcut, just move your mouse pointer over an UI element.
To navigate the image, use the button on the controls sidebar. Another way an image can be moved/shifted is by holding the left mouse button inside an area without annotated objects. If the
Mouse Wheelis pressed, then all annotated objects are ignored. Otherwise the a highlighted bounding box will be moved instead of the image itself.
You can use the button on the sidebar controls to zoom on a region of interest. Use the button
Fit the imageto fit the image in the workspace. You can also use the mouse wheel to scale the image (the image will be zoomed relatively to your current cursor position).