TIPS
You can drag files into the file list and the files will be moved there
You can drag files out of the file list and they will be copied.
If you drop a file or disk icon (volume) onto the image window, Peek will change directory to that
folder or volume.
If you're tired of being asked whether or not you want to copy/move/create link a file you've dragged,
you can select the default in the Mouse options.
Peek will start up in the state you left it in (mostly).