1. Check boxes are highlighted when you tab on it. Checked/unchecked is done using space. Using tab highlights different checkboxes.
2. Radio buttons once tabbed into requires the usage of up/down arrow to select. (it will change selection if you use arrows).
The above are expected behaviors.

Issues:
Tabbing can be done only into components visible to user (This means that when you use tab on the last component of the configuration tab, it will tab out of the table into the next component - Apply button instead of scrolling down to the next configuration).
This is a TreeView issue. The scroll does not work unless manually scrolled using mouse.

Mac and Windows both read the configurations (and if it is selected/checked) but it does not scroll down when tabbed.