How to disable escape in stand alone viewer

Am on V12. (Was on V10 for years, and finally upgraded, so now am customizing it some more.)
In the stand alone viewer, you can close it by either: alt+F4 or escape. I want to disable the effect of escape.
I set up an escape hotkey, tried it doing various things, including nothing, but that did not work.

I'm not sure it is possible to change what Esc does in the standalone viewer at the moment. (Built-in, that is. A tool like Autohoktey could intercept the key and change its meaning.)

Is there a conflict with a particular viewer type and how it wants to use Esc, or is it just to avoid pushing Esc by accident?

Thanks for your quick response.
I have used AutoHotKey, so will give it a try.
The reason I want to disable escape: I am used to Esc as the way to close a subsidiary window or dialog box, not the main window of interest. As I was learning new facilities of the standalone Viewer, I kept hitting escape to end the detailed thing I was doing, and didn't like that it closed the Viewer. Rather than try to retrain myself, I'd rather retrain Opus.

In the next update we'll make it so you can override the Escape key with a viewer hotkey.

Fabulous!
Appreciate your responsiveness. If only all software companies reacted like this.