How to add a game to lightgun auto collection

Hi all

Messing about with a Wiimote for lightgun games and quite enjoying it, not perfect but adequate for a giggle.

Have enabled the lightgun auto collection but want to add Die Hard Trilogy to it on PSX.

Have set it as such in the metadata but hasn't gone into the collection.

Looked for the .gungames.xml file to add manually as previous posts replies have suggested but can't find it?

I know i can add a new custom collection, but just adding one game to an existing would be a much easier (!?)

Any advice please.

Cheers.

Hello and welcome

It seems that this game isn't available in the light gun auto collection because all gameplay isn't to play with gun.

Btw, you should find the file in
emulationstation\resources\gungames.xml