Ruckus has a Training portal (separate from the Support portal), at this link:https://training.ruckuswireless.com/
I see a Ruckus ICX Implementer (ICX 250) shown at the top of the list, and this page lists all available courses:https://training.ruckuswireless.com/totara/coursecatalog/courses.php
I see ICX 210 Update Training, with v08.0.50, 08.0.60, 08.0.61, 08.0.70 new features, that might be of interest.https://training.ruckuswireless.com/enrol/index.php?id=1327
On the left side, under Tags, click ICX Router, ICX Software, ICX Switch and it filters down to 14 courses.
There is one called Ruckus ICX 200 Administrator online training course, that sounds like what TechHelp24 mentions.