Hello.
Probably has been suggested already, or at least something simillar but I'm going to post how I see it.
I don't really want to explain much about it, probably a lot of you already know what's going on here.
Additional tab, called Journal would have in it few more tabs. These would have implemented all the bosses in game (decluding event ones when not available), dig spots (how many available in certain location - x/x mt. moon), daily quests (like trick room, 5 ranked pvp games, doctor etc.) and calendar so we could see planned events and stuff.
I hope you like this idea, in my opinion it would be great to have such thing implemented to the game.
Kind regards,
Xytreh.