In explore, we have a toggle between manual and automatic fighting, and it stays on our preferred setting unless we change it ourselves.
When I go to the arena page to battle my pets, I can also select automatic fighting in the dropdown, but whenever I leave the page that one resets to manual combat.
I'd really like to be able to enjoy battles without the manual fighting hassle, and without having to depend on my terrible memory for it (while still choosing my opponents.)

So, could we please have an explore-style auto/manual battle toggle for the arena?