Shoot outside of the screen

[3lc3z4r]

Hello, if it's me again, I wanted to know if it would be possible to add an option that replaces the "shoot outside of the screen" with a simple button (I'm referring to the light guns used in the dreamcast, since it works perfectly for the arcade) because although this maintains that original and faithful idea of the system, for some games it is usually a bit difficult (such as the house of the dead 2). Also, thanks for your consideration.

PS: if there is something like that that is already in the emulator, you can tell me if you know it.