public function setShortcuts( $shortcuts )
	{
		if( !is_array( $shortcuts ) )													//  no Array given
			throw InvalidArgumentException( 'No array given.' );						//  throw Exception
		foreach( $shortcuts as $short => $long )										//  iterate Shortcuts
			if( !array_key_exists( $long, $this->possibleOptions ) )					//  related Option is not set
				throw new OutOfBoundsException( 'Option "'.$long.'" not set' );			//  throw Exception
		if( $shortcuts === $this->shortcuts )											//  these Shortcuts are already set
			return FALSE;																//  do nothing
		$this->shortcuts	= $shortcuts;												//  set new Shortcuts
		return TRUE;																	//  indicate Success
	}