The online help states that “Background images are editable while you are inside this command. Click and drag on an image to reposition it. Dragging on a corner frame widget allows scaling of the image, and dragging on the rotation widget allows rotating the image. A click and release on the rotation widget instead of click and drag enables a different rotation mode that shows a 3-wheel rotation gizmo. When that gizmo is enabled you can click and drag on any of the 3 wheels to rotate around any of the 3 axes”.

This is fine but I find the manipulation of images rather cumbersome. It is hard to get them to the same scale and the proper orientation. It would be nice if I could import the image at its existing size and if the 3-wheel rotation gizmo had ortho settings, so that I could orient an image at say 90°. The angle input field at the bottom of the window does not seem to word.

Am I missing something obvious here?