Fair enough. I guess I am just lazy wanting not wanting to drag an item all the way from the inventory to the quickbar or resistant to change!
I don't suppose its worth putting in a feature request for shortcut key for this? I'll take no reply as don't bother.
Thanks for the attention. The bug is in two parts.
There is no longer a shortcut for moving an item to the quickbar, expected behaviour from 0.16 is broken; at least for me I liked and used this behaviour and noticed immediately that it was missing.