features: what does it do? why do we need it?

bugs: repro steps (I did X and expected Y but Z happened!)

1. Install Canary on Windows, and NVDA (nonvisual desktop access) screen reader from www.nvda-project.org
2. Launch settings
3. Down arrow until "advanced" is heard and press enter.
Expected Result: The advanced section would be expanded, and additional items would populate.
Actual result: Nothing happens. The only way to activate this is by utilizing mouse emulation commands in NVDA. All items in settings ought to be keyboard focusable, navigable, and clickable.