call '/Keypad ' from the screens

I am trying to use the Cimplicity Built-in /keypad function. Is there a way to call this keypad through instead of command line argument.

As we have lot of Viewers deployed already, and I want to enable the keypad function with the default layout changed in …\Proficy CIMPLICITY\Data\gefkeypad.cfg.

As I would like to avoid updating the viewer PCs, wondering if there is an alternative to call the keypad directly from the screens.

Regards,
Subhash