Hi Ella,
Super thanks for your comments! I realise that people tend to forget what they have picked and gets suppriced when "why can't I rotate this piece?" or "why can't I place it over there" when they have chain activated. Need to add some kind of highligth/reminder when you try too many times.
It also seem that people completly don't use "Hold" and just discard, so as you say, more tutorial. :)