In game, there is a settings button top corner beside the other buttons. In there is the guide. About the pause, I understand that you get to question "what to do now?", because second round of prep phase is basically a skip phase. You should think what you will do or just end the phase and start battle again, keeping the cycle. In a strategy games, not all turns you do something 😊. Of course, this experience you get it by playing the game more, like chess.