Load up and play the script as normal on your vr headset linked to whatever toy your using but watch on PC just have them lined up press play on both and then use the audio to sync them up by hitting play pause untill the audio is all synced up, it's a bit of a pain but it works.
I used to have to do similar prior to getting a quest, I was using psvr to watch scenes but playing wankz/milfvr scripts on the feelme app on my phone. Can be a bit fiddley if you want multiple scenes in a session but it's OK if you just 1 or 2.
