In Mail, you can repeat the last move or copy action on the currently selected messages using a keyboard shortcut. That's not only easy, it also involves no click (or release) targets, which, as displays grow, seem to shrink and be missed.
Repeat the Last Move or Copy Action Fast in Mac OS X Mail
To do unto the currently selected messages what you did when you last moved or copied mail:
- Highlight the messages you want to move or copy.
- Press Command-Option-T.
If your last action was to move, the command will move again. Respectively, if you last copied, the current selection will be copied.
Find Out What Will Happen
What action will apply is easily checked by selecting Message from the menu and looking below the Move To and Copy To items. The current action — say, Move to "Archive" Again will be stated plainly.