Would be useful to activate the menu option Window -> Center lost window by using a key combination such as Ctrl+- and then each window that is listed in the menu to have a simple key assigned to it, such as 1, 2, 3, ... 9, A, B, ... Z.
In this way the menu can be accessed quickly and also see the windows that can be accessed quickly for centering.
The Window -> Center lost window is not listed in IDE Options -> Editor -> Key mappings.