Research sizing image display?

I’ve got images of all sizes in my Research Folder. Is it possible, when one is selected and displayed in the editor area, to have images stretch or shrink to fit to the display area?

Sure, just double-click on the image and you’ll find a button to fit the longest edge of the image to the width/height of the window, as well as a checkbox option to keep it that way even if the window resizes.