For sharing animation in two windows, such as in the main IDV view window and a vertical cross section control, open the animation properties dialog in each animation control by clicking on the i icon. Toggle on the Shared box and click on Ok. Then using either animation control will effect animation in both windows.
You can share other kinds of display controls, such as sharing one
selector line in vertical cross sections. This is toggled on by clicking on
the Share check box under the View menu in the
control window.