I don't think you can change this.
When I list all of the shortcuts in the browser (from the Work Environment), CTRL does not show as a shortcut on its own.
Not even as a non-customisable shortcut.
I don't have a Mac, but I assume OPTION would not show as a single key shortcut either.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11