RE 3

zero.Backoffice/Modules/Countries/Module.cs

@@ -0,0 +1,19 @@
+using Microsoft.Extensions.DependencyInjection;
+
+namespace zero.Backoffice.Modules;
+
+internal class CountriesModule : ZeroModule
+{
+  /// <inheritdoc />
+  public override void Register(IZeroModuleConfiguration config)
+  {
+    
+  }
+
+
+  /// <inheritdoc />
+  public override void Configure(IZeroOptions options)
+  {
+    options.Raven.Indexes.Add<Countries_Listing>();
+  }
+}