But you cannot change it to behave as a single key (i.e. Ctrl), only what the shortcut associated to it does (Shift+Win+F23 IIRC).
There are ways, which involve using a software trap to capture it and then emit right control for a set period of time, but that's a workaround rather than a real fix.
https://github.com/m-bartlett/remap-copilot has a good writeup in the README