How to Rename Icons in Mac OS X Lion
To rename an icon in Mac OS X Lion, you can either click the icon’s name directly (don’t click the icon itself, because that selects the icon) or click the icon and then press Return (or Enter) once.
Either way, in Mac OS X Lion the icon’s name is selected and surrounded with a box, and you can type a new name. In addition, the cursor changes from a pointer to a text-editing I-beam.
An I-beam cursor is the Mac’s way of telling you that you can type now. At this point, if you click the I-beam cursor anywhere in the name box, you can edit the icon’s original name. If you don’t click the I-beam cursor in the name box but just begin typing, the icon’s original name is replaced by what you type.
If you’ve never changed an icon’s name, give it a try. And don’t forget: If you click the icon itself, the icon is selected, and you won’t be able to change its name. If you do accidentally select the icon, just press Return (or Enter) once to edit the name of the icon.
If an icon is locked or busy (the application is currently open), or if you don’t have the owner’s permission to rename that icon, you can’t rename it. Similarly, you should never rename certain reserved icons (such as the Library, System, and Desktop folders).