activate view by controller button

[alihor]

Hi, how can I activate a View Window by using a controller button?
Normally this is the way, following the SDK:
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To activate a window
Click anywhere inside the window.
-or-
Press CTRL+TAB to cycle through the open windows, selecting the window you want to activate.
-or-
In the list at the bottom of the Views menu, click the window that you want to make the active window.
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But when I change Camera Views within a View Window, I first have to click in the window (activate it) and the I can change the camera view, e.g. by FSUIPC.

So I need to activate that view window with a button control.