Thanks Airon, for the only reply after 500-something views.
I'm familiar with those videos/tutorials and that thread discussing OSC. I've been using REAPER for a very very long time, and its my main DAW etc etc etc..
What I meant is that it would help newcomers if we had an official video, like the one for FL Studio or Cubase:
FL Studio:
https://www.youtube.com/watch?v=OfMJkVd6Ffg
or
Cubase:
https://www.youtube.com/watch?v=RMz9nnqGHTk
Also, the User Guide, I'm just looking forward to updates