Thank you! ♡
I definitely agree the little circles are not intuitive (｡•́ㅁ•̀｡)! The long term plan is to place them under the the tiny island icons in the regions menu so you can quickly adjust which islands you have pets equipped to all at once without menu swapping.
For noow maybe I can just hand draw an "equip a Nimikins" with an arrow pointed to them until you use it for the first time (╭ರ_•́)