Hi there, everyone! I am wondering how do I implement something like this: In my game's menu, I want to add an option called "Library". I know I can do this with Yanfly's plugin. My question is, I want this to have a submenu where the player can choose: (a) Monster Book, (b) Item Book, and (c) Journal, each of them I already have plugins for. But how do I add that sub-menu thing? I'm not sure what the next step. I hope someone can help me with this. Thank you.