The Preferences window

When the last rearranging process has ended...
-
Launch item from script folder...
You can choose a compiled AppleScript program, another program or sound
to be launched when the last rearranging process end. These files or aliases
to them have to be in a folder with the name "Scripts" in the same folder
as Rearrange Folders.
-
Quit Rearrange Folders
The application will quit when the last running rearrange process has
ended.
-
Shut down computer
In addition to quitting Rearrange Folders, it will attempt to shut
down the computer. Note that the automatic shut down works only if you
have closed all other documents or saved changes so that other applications
which might be still running can quit without asking whether to save changes
or not.
Expert options
-
Don't ask for confirmation before starting a rearrange
process
With this option checked the warning dialog before starting will not
be displayed anymore. You can temporarily disable the warning by pressing
the option key when starting a rearrange process.
-
Start rearranging immediately after selecting directory
Rearrange Folders will start the rearrange process as soon as you select
a folder or disk using the settings set which is currently selected. You
can reverse this option by holding down the option key when dropping a
folder or disk into the drop zone in the main window.