F5 Function Key - Disable?

Our application uses the F5 key to do another function. However, when the map is focused, the F5 is causing the map to refresh (typical browser action). Is there a way to disable that and allow the F5 to flow to the application instead?

You can disable this with

TMSFNCMaps1.EnableAcceleratorKeys := False;

That also disables all but the + and - keys on the keyboard shortcuts to pan and zoom the map. Anyway of JUST disabling the F5 key, but still be able to use the keyboard shortcuts?

This will require some code changes. Currently that's not possible.