sorry, last time I played with replay system, there wasn’t sequencer available yes, so quite a long time 
I think the Shooter Example has replay implemented, maybe you can look there for a example. But I guess multiplayer is the quickest way to go. There are some VR Multiplayer examples out there, but I guess only for Rift / Vive, not sure if somebody did it with the quest already, but should not make such a big difference