I managed to muddle my way, with some help, to a solution for this
That is, by adding "$menu->setActive(XYZ)" to my component controller.php,
I am able to get the Main Menu in the side bar to correctly be highlighted.
My issue is that when I try a theme from RocketTheme, I notice the are some
other menus linked to main menu but that these are not highlighted.
I would have thought using the setActive would affect all menus but it
Can anyone kindly help nudge me in the right direction?