Just select a bunch of files/folders in the Finder and choose the desired option in the menubar.
If you want to view hidden files in the Finder, simply choose "Show hidden files in Finder" in the menubar.
iVisibilityX is freeware and Universal Binary. It is available in English and Dutch.
MACNEWS A good, singular-use item but, for those who also need a good maintenance utility and, in addition, need to conserve menu bar space, MainMenu does this, and much, much more. (Version 1.0)