I know there's one in game, but for people like me who use this app ALL the time and day dream about Ark while at work (I definitely do this) a dossier tracker would be awesome. I lose track of what I do and don't have tamed all the time. And when I'm texting friends, we often plan a Dino hunt for what we want to tame. A dossier tracker would be amazing. Maybe have it as a simple button titled "Dossiers". When you click it, it brings up a scrollable list just like in game. You tap a dossier thumbnail to highlight it as tamed or leave it grayed out for untamed. Just like in game. Make it toggle though, in case you accidentally tap one you don't have tamed.