Recorded training for Genius for Retail. The short task videos are on YouTube and play here. The longer sessions are on the Global Payments training library.
Global Payments publishes homework sheets that go with the group webinars, covering selling, inventory, reporting and settings. Give these to a new merchant to work through between sessions.
A caution on age. Sessions recorded before the rebrand refer to Heartland Retail. Mechanics are generally still correct; check anything that looks unfamiliar against the current guide.
Source: Global Payments Genius Retail help center. Newly built article, pending review.