In the 2-up side-by-side preview, I know I can zoom the images together using +/-, and scroll them independently by dragging with the mouse. And I know I can use keystroke "L" to lock them for scrolling together. But I can't find a way to zoom them independently (i.e., to increase or decrease magnification for one of the images). Am I missing something? Or would this be a feature request?
(By way of comparison, Media Pro's "scroll lock" allows for all four types of actions, i.e., turn lock on for dependent zoom/scroll, off for independent zoom/scroll).