Sets the title of the receiver with one character in the string denoted as an access key.
Original signature is '- (void)setTitleWithMnemonic:(NSString *)aString'
Available in Mac OS X v10.0 and later.


- aString (NSString)
- The new title of the cell. One character in the string should be preceded by an ampersand (&) character. The character that follows becomes the mnemonic character for the title.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)