Free (vacant) keyboard shortcuts in InDesign [Win & Mac, CS6+ ]
Google helps you to find list of all the InDesign applied shortcuts,
but this program saves a list of free hotkeys on your machine.
This is useful in order to easily assign unoccupied combinations to your scripts.
Two page PDF manual help you add this script to your toolbox.
https://mega.nz/#!swRykDLT!UXyiO7oaOONKEpq8_Wfb9Evzrf7-sdmTQfoESjxN5U0
https://www.scriptopedia.org
https://www.scriptopedia.org/en/js-indesign/222-free-shortcuts-en.html
https://www.scriptopedia.org/js-indesign/223-free-shortcuts-fr.html