The link below leads you to the official tutorials on Reaxys site. There are five types of tutorials.
Since Reaxys is a structure-centered database, knowing the structure editor better is helpful. Elsevier has provided a number of webinar recordings to assist Reaxys users in developing expertise with the Marvin JS editor. (Note: viewing these recordings requires you to register with gotowebinar.com.)
You can access more support & training materials within Reaxys.com. Please use the buttons above to log into Reaxys, then click on "Help" in the navigation bar.
For example, you can find Structure editor informaiton under Help/Structure/Reaction Editors/External Structure Editors