Would also like to add to this, aside from being able to select which pokemon to use in a battle using hotkey, apply also hotkey setup during battle.
E.g hotkey 1-4 for any of the 4 pokemon moves
hotkey q-o for using items etc.
"Enter" to continue
At least with hotkey settings battling could be a little bit more productive expecially during sidequests, rather than scrolling and mouse clicking.