Can’t assign multiple Buttons to UINavigationItem when using Storyboard with iOS 5

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I found an easy solution.

1) Add the folowing category:

@interface UINavigationItem(MultipleButtonsAddition)
@property (nonatomic, strong) IBOutletCollection(UIBarButtonItem) NSArray* rightBarButtonItemsCollection;
@property (nonatomic, strong) IBOutletCollection(UIBarButtonItem) NSArray* leftBarButtonItemsCollection;
@end

@implementation UINavigationItem(MultipleButtonsAddition)

- (void) setRightBarButtonItemsCollection:(NSArray *)rightBarButtonItemsCollection {
    self.rightBarButtonItems = [rightBarButtonItemsCollection sortedArrayUsingDescriptors:@[[NSSortDescriptor sortDescriptorWithKey:@"tag" ascending:YES]]];
}

- (void) setLeftBarButtonItemsCollection:(NSArray *)leftBarButtonItemsCollection {
    self.leftBarButtonItems = [leftBarButtonItemsCollection sortedArrayUsingDescriptors:@[[NSSortDescriptor sortDescriptorWithKey:@"tag" ascending:YES]]];
}

- (NSArray*) rightBarButtonItemsCollection {
    return self.rightBarButtonItems;
}

- (NSArray*) leftBarButtonItemsCollection {
    return self.leftBarButtonItems;
}

@end

2) Add your items to view controller (items will be sorted ascending by tag)

enter image description here

3) Connect your items with leftBarButtonItemsCollection or rightBarButtonItemsCollection outlet collection of UINavigationItem

enter image description here

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