I have two sad things to tell you: 1) there isn't any. 2) there's no way to create such options.
You can try to suggest that at: https://adobebridge.uservoice.com
Just do not hold your breath, they are backlogged with years worth of bugs, so new features will be after the bugs (we hope).
The latest Beta build 126.96.36.199 has support for ‘Customizing keyboard shortcuts’ along with a few other features.
The detailed guide of using the keyboard shortcut customization feature is at : https://community.adobe.com/t5/bridge-discussions/keyboard-shortcut-customization-workflows-in-adobe...
For a complete list of features available in the Beta build, please refer to the community post:
We would love for you to try it out and share feedback.