In OSX, when I click on a file while holding down the command button, I can move it to another drive.
The problem is trying to do this with multiple files. If I press command-A to select all the files in the directory, and then try to do the same thing, all the files get deselected and only one file gets moved.
This is what I do.
- Click somewhere in the directory.
- Press cmd-A to select all files.
- Press and hold cmd
- Click somewhere in the selection and hold the mouse button.
- Drag the files to the destination.