The manuals can also be downloaded from the following FAQ if required: https://support.justflight.com/a/solutions/articles/17000142841
The RJ Professional Operations Manual includes a tutorial for the RJ itself. The GNLU-910A FMS Operations Manual covers a generic tutorial for the GNLU-910A FMS.
We will also be producing tutorial flight videos an publishing them on our Youtube channel in the not-too-distant future.
Mark - Just Flight