The Editorial_InstallConfig.Xml is available in the root of the Config folder., typically C:\tera\gn4\relxx\config or C:\tera\gn4\config.

Use it to initialize a GN4 database during the first install.

IMPORTANT: By loading the Editorial_InstallConfig.Xml by srv4 dbupdate -config ..\config\Editorial_InstallConfig.xml on an already configured database, your database will be reinitialized to the factory defaults, and you might loose all your customizations!