I would like a way to change the field of view (angle) of the scene view camera. My games never use the same field of view as the scene view camera, so the scene view is misleading. When making cutscenes and other things that require accurate camera placement, it is crucial to know what the camera is actually going to see. In such situations, I have been forced to use the default field of view. I am aware of the camera preview, but it requires the camera to be selected, it is too small to show any detail, and it is not updated until the camera is placed.
I have searched the Asset Store for the ability to change the scene view field of view, and it is not available, even for money. I have no choice but to appeal to you.