IBOutletCollection set ordering in Interface Builder

Question

I am using IBOutletCollections to group several Instances of similar UI Elements. In particular I group a number of UIButtons (which are similar to buzzers in a quiz game) a

Answer 1

I used the extension proposed by @scott-gardner to order Image Views in order to display counters using individual png images of dot-matrix digits. It worked like a charm in Swift 5.

self.dayDigits.sortUIViewsInPlaceByTag()

func updateDayDigits(countString: String){
        for i in 0...4 {
            dayDigits[i].image = offDigitImage
        }
        let length = countString.count - 1
        for i in 0...length {
            let char = Array(countString)[length-i]
            dayDigits[i].image = digitImages[char.wholeNumberValue!]
        }
    }