The ability to insert and scale an image is very useful, but moving the image to the origin and (especially) rotating the image to exactly the right orientation can be very fiddly.

A second "calibrate" option which works like a "point-to-point" move would be very useful:

Pick a point on the image Pick the corresponding point on the sketch Pick a second point on the image Pick the corresponding point on the sketch

Then the image is scaled and rotated so that the selected points coincide.