So, 'Name' and 'Hardware' are static labels, and 'Group 1'
and 'Group 2' and the datagrids are dynamically populated from the
xml file. A standard list or hbox/vbox combo won't seem to work
because I'd like the positioning of the elements to be more precise
(with indenting, etc).
I'd also like to contain all of these repeated components
within a Canvas within a TabNavigator.