Rearranging App for iPhone and iPad via iTunes

My MacBook died a few months back and I just recently upgraded my devices. iPhone X, iPad Pro and Macbook Pro. My MacBook was received last and I was looking forward to rearranging all my iCons on my other devices via iTunes. When I tried to do this I noticed that this function has been removed?

EXCUSE ME WHY???????????????????

This seems so un Apple like! Recently I have begged the question with Apple and have been wondering more and more WHAT IS GOING WRONG. The whole point of Apple is its simplistic approached and user friendly attitude?

FIX THIS!