Match colour of the hue and saturation colour slider with the photo

Hue and saturation adjustment layer contains a hand tool which picks the colours which we would like to adjust the hue and saturation of. When we select a colour in the photo using the hand tool only the drop down changes to the appropriate colour while the slider colour remains cyan. If the slider colour also changes to the colour closest to the colour that the user picks , when the user selects a different colour it would match with the slider colour and the user won’t need to scroll through all the colours in the slider.