Hi William, you may want to check out this link for information from HAR on the Matrix classes. http://www.harconnect.com/2017/01/30/new-matrix-courses/?utm_source=HAR/MLS+Master+List&utm_campaign=b3d484025e-RSS_EMAIL_CAMPAIGN&utm_medium=email&utm_term=0_5c0a7c027d-b3d484025e-252414473
There is a link near the bottom of that article to sign up for Matrix classes. I did not see any webinars. I'm sure if enough members ask, they would arrange it.
If this link doesn't work, http://members.har.com/edu/dispCourseClasses.cfm?course_id=1018, go to your training portal on HAR.COM and search on Matrix or click on the link for "free" training and Matrix online will be listed. The classroom training for Matrix is also available for free.