Lots of great softwares aren't officially sanctioned by the manufacturer. I don't know, for example, that Onyx or USBOverdriveX has Apple's "blessing" but they provides so much more flexibility than is built into the OS that they're godsends. My personal feeling is not to worry about it. If you find that app (or something like it), then just back up your system first if you're not 100% comfortable. Then install it and work with it for a while. If you get the feeling that your OS isn't quite working that well afterwards, revert to your backup.