Copy, paste & duplicate
Move images in and out of Atlas with the clipboard, the way you would anywhere else, plus a one-click duplicate for a working copy.
Copy
Right-click for two kinds of copy: Copy Image puts the picture on the clipboard to paste into another app, and Copy Path puts its location there for when something asks for a path. Ctrl+C copies the selected image, and a multi-selection can copy all its paths at once from the info panel.
Paste
Press Ctrl+V in a folder to bring something in. Atlas takes whatever is on the clipboard: an image from another app, files copied in Explorer, or an image link, which it downloads for you. It checks for duplicates as it goes.
Duplicate
Right-click and choose Duplicate image to drop a copy beside the original, renamed so nothing is overwritten. Handy right before a risky edit.