Melanie has a few handy keyboard shortcuts to help you save time and effort.

<Ctrl> + <A> Select all gels
<Ctrl> + <Shift> + <A> Select all spots
<Ctrl> + <Z> Undo last action
<Ctrl> + <Y> Redo last action
<Left> Move left
<Right> Move right
<Up> Move up
<Down> Move down
<+> Zoom in
<-> Zoom out
<Ctrl> + <*> Fit images in screen
<Ctrl> + </> Move images to same location
Switch between stacked images
<Page Down> Move to the next image in the stack
<Page Up> Move to the previous image in the stack
<Ctrl> + <Page Up> Switch between the front and back images in the stack
<F1> Help
<Alt> + <F4> Quit Melanie
<Ctrl> + <Q> Quit Melanie
<Ctrl> + <S> Save all