Listbox ShadowScroll: Synchronize Selection of on Listbox with Another Listbox

Listbox ShadowScroll: Synchronize Selection of on Listbox with Another Listbox

This sub [ShadowScroll] makes it so that when you click on one listbox a second list box selection is identical. In other words, when you select/click on listitem #5 in a listbox the seconds listbox automatically selects listitem #5 at the same time.