Support@Seestar Thanks for considering this. Since frame mode does not work for me, I intend to use the planning mode to set up large mosaics. If you had a circle inscribed in the rectangle, arranging your scheduled frames in a rectangular array so that the circles touch each other would guarantee a mosaic without any gaps, even if the orientation of the rectangular frames does not match the actual orientation when the plan will be executed. Of course, if the orientation of the rectangle would reflect the real position at the time of capture instead of all of them being parallel would be even better.
Even for individual shots, you should display the rectangle's orientation at the time of capture, not at the time of panning.