I wanna finish the last of the Ashes and relics and want to know if I have to do all of it one session. Am I able to set up the boss fight, advance through rounds 20-40ish, and be able to save and quit? Or do I have to set up boss, get to round 60, beat Veytharion on 61, and then finish the trial. I just wanna know if I'm able to save in between or do I have to do it all in one session.