As an avid Android user of Pokémon Online and someone whose likes switching avatars a lot I find it rather annoying that I have to turn my phone on it's side and swipe through countless avatars just to find the one I wanna use. For example, if I wanna go from Spoiler: Cynthia to Spoiler: Lisia I have to swipe through 200+ avatars just to get to the Lisia avatar. Now for me it's really annoying (and a tad hurtful on the fingers) + if you go too fast you might just accidentally swipe into the teambuilder. It would be pretty awesome if there was a button (Maybe replace the 4th avatar on the right and put the button there idk) that when clicked on it'll show "Diamond & Pearl Avatars" "OmegaRuby/AlphaSapphire Avatars" etc etc (kinda like the generation button but with avatars added to it). That way all the avatars are separated in their own list and you don't have to swipe through generation and generation of avatars just to find the one you wanna choose. Just click on the button, pick the gen of avatars you wanna see, swipe and choose, save and done!
No because that opens a huge door to abuse. Unless you mean other pre-generated sprites, in which case I think almost every trainer sprite has been added at this point.
I meant custom sprites. Like u can give it to a winner of a forum tournament or something like that. It should only be accessible for the player who owns that avatar.