04-02-2020, 10:11 PM
The crop tool is really about changing the size of things, not the view. Changing the canvas size has other limitations (positions of guides, selection clipping...). What you want is some kind of porthole. IMHO this could be some kind of display filter (View>Display filters) that dims the image outside of some settable rectangle.
In the mean time you can use two pairs of guides to delimit a rectangle in your canvas. They will even make it easier to crop later.
In the mean time you can use two pairs of guides to delimit a rectangle in your canvas. They will even make it easier to crop later.