¿Cómo puedo adaptar esto para poder hacer múltiples selecciones? y obtener los seleccionados

- (id)initWithCellIdentifier:(NSString *)cellID {
if ((self = [super initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellID])) {

    UITableViewCell *cell=self; 
            UIImage *cry = [UIImage APP_CRYSTAL_SELECT];
    self.leftImage = [[[UIImageView alloc] initWithImage:cry] autorelease] ;
            [self.contentView addSubview:leftImage];            
}

Y el método seleccionado es:

- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
    [super setSelected:selected animated:animated];
      if(selected)
      {
       NSArray *subviews=[self.contentView subviews];
        for(UIView* view in subviews){
          if([view isEqual:self.leftImage]){
             [self.leftImage setHighlightedImage:[UIImage APP_CRYSTAL_SELECTED]];
        }
    }
}
else
{       
    NSArray *subviews=[self.contentView subviews];
    for(UIView* view in subviews){
        if([view isEqual:self.leftImage]){
            [self.leftImage setHighlightedImage:[UIImage APP_CRYSTAL_SELECT]];
        }
    }
  }
}