I have a lightbar that I am trying to make larger. So I try to scale it a little larger. I first try to select the entire lightbar (as seen in the screenshot; objects turn red) and then just move drag the mouse upwards which rescales it. Unfortunately, it seems to not affect the elements inside the lightbar. Those components can't seem to be selected. And as you can see from the screenshot, those objects stay black. Can't seem to select or grab them with the lightbar.
What do I need to do to resize the entire lightbar including the objects inside of it?