Just a heads up that a recent update to Chrome desktop browser has broken the drop down menus. (They no longer appear when you hover over the heading with your mouse.)
The version with the problem is 71.0.3578.80 (Official Build). The current version Chrome 70.0.3538.110 works fine.
We've reported the issue to google.
In the meantime:
1. Links to all of the features can be found on other areas of the page and site
2. Perhaps don't upgrade Chrome for now if you're comfortable with that
3. Switch to another browser for now until google sorts it out or permanently (Brave, which is based on Chrome and has better security works great.)
Thanks to Lemon Cheesecake for bringing this to our attention!