Is there a way to use Common Action Widget to display a secondary keybind?

I’ve managed to setup keymapping for both primary and secondary key bindings for actions. However the Key Input Select widget displays a pretty long name for some of these keys and I’d like to use icons instead. I’ve managed to setup icons for a bunch of Controller types and keyboard/mouse to work with CommonUI’s Common Action Widget. But what I can’t figure out is how to use this widget to show the secondary key bind.