Unfortunately, it did not fix the issue with the y key not exiting the GSX Editor. Could I get some help with this?
GSX doesn't try to control keys directly.
It reacts to actual simulation *events* and "Y" in this case means "whatever your PC use to toggle Slew mode", because what GSX recognize, is you entering/exiting Slew mode so, the only thing you can do is to check if there IS some key assigned to the Slew mode Toggle, and use that and, if it's not Y and you'd like to be Y, assign it to Y, assuming Y is not used for something else.