It does only save the image where the last thing you loaded was. It also only saves as a png right now. You can change the cameras orbit, but the elevation cannot yet be changed.
Use A and Z to zoom in and the arrow keys to move the camera. The image in the corner is a preview of what one frame will look like. I know its not much, but tell me what you think so far.
Here is a sample sheet I made for fun:
