>>31911202It can keep wat it has now when battling gyms, but when training, you should be able to adjust your own settings so that the default selection is of mons either similar or half of the first Pokemon you're facing, just so that I can select the first one or two slots with what I need while the rest won't affect the prestige outcome. Right now I need to replace them all every single battle, even with a good nickname/favorite system in place it still takes time.
