@Lytala
That's what the [Home] and [End] button is for, brings you to the top or bottom of the page :P, but like Nightingale's suggestion with the Enter
Anyways, the group battle sounds pretty helpful, one more reason to get premium subscription I guess.
PS. If the whole too much pets in the arena continue to be a problem, I would suggesti something like the battlefield timer, with the whole every 10 hours the pet's tactic changes, and have something like every hour the pets still in the arena battle a random pet in said arena, if it's already not implemented. (Don't know if that's already what is being done, cuz I just add them there and leave them :P)
PS2. Also, I think the reason why there aren't that many high level (45+) pets in the arena is because they are being used, or sold, both breeding and regular.
My Pet Sales page --
Currently have 3 extra Blueprint: Military Academy level 3
#cfddcf -- #d0e7ba