Seleccione * Ayuda * buffer de ventana después de Ch f

Hago "Ch f" mucho para las funciones de emacs lisp. Prefiero que se seleccione la ventana que muestra el búfer de Ayuda (justo después de Ch f) y luego presione "q" cuando haya terminado para cerrar la ventana. ¿Hay alguna manera de lograr esto?

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(setq help-window-select t)

o personalizar esta variable. La documentación completa establece:

Documentation:
Non-nil means select help window for viewing.
Choices are:
 never (nil) Select help window only if there is no other window
             on its frame.
 other       Select help window unless the selected window is the
             only other window on the help window's frame.
 always (t)  Always select the help window.

This option has effect if and only if the help window was created
by `with-help-window'

You can customize this variable.

This variable was introduced, or its default value was changed, in
version 23.1 of Emacs.