It’s ok, question answered, SLR were very kind to answer my question directly through email after I approached them.
it appears it’s a lot more straightforward than I originally thought, you buy the script to the video you like on the SLR website on your account then when you fire up SLR/DeoVR on the Oculus quest and login into SLR through the DeoVR browser it will automatically play the script with the video bearing in mind you’ve paid for the video as well or or a premium member.
I believe that’s right anyway, will find out in the next few days when the handy arrives