Resizable game window

I was tasked to make the game window resizable. After exploring engine code, i realized that is not easy to set WS_THICKFRAME for game window style property.

Can we in the future be able to make game window resizable through config or function call?

For now, i made workaround here:

WindowsWindow.cpp (after 124 line) function FWindowsWindow::Initialize

		if (Definition->HasSizingFrame)
		{
			WindowStyle |= WS_THICKFRAME;
		}

WindowsWindow.cpp (after 595 line) function FWindowsWindow::SetWindowMode

		WindowFlags |= WS_THICKFRAME;

As i can see in UE4 4.11 Release Notes, now we can resize game window. Thanks!
http://i.prntscr.com/e8a5329c8df346eea5360e7be5c88cbc.png