--- a/FrmMainWindow.cs	Sat May 12 20:11:33 2012 +0100
+++ b/FrmMainWindow.cs	Tue May 15 21:00:29 2012 +0100
@@ -1291,5 +1291,33 @@
 				dialog.Dispose();
 			}
 		}
+
+		protected void OnAddNewFileActionActivated(object sender, EventArgs e)
+		{
+			string cancelText = Translation.GetTranslation("bttnCancel", "cancel");
+			string openText = Translation.GetTranslation("bttnOpen", "open");
+			FileChooserDialog fileDialog = new FileChooserDialog("Add data file", this, FileChooserAction.Open, cancelText, ResponseType.Cancel, openText, ResponseType.Accept);
+			fileDialog.SelectMultiple = true;
+			FileFilter filter = new FileFilter();
+			filter.AddPattern("*.race");
+			filter.AddPattern("*.system");
+			filter.Name = "WarFoundry data files";
+			fileDialog.AddFilter(filter);
+			int response = fileDialog.Run();
+			string[] filePaths = fileDialog.Filenames;
+			fileDialog.Hide();
+			fileDialog.Dispose();
+
+			if (response == (int)ResponseType.Accept)
+			{
+				foreach (string filePath in filePaths)
+				{
+					string newFilePath = System.IO.Path.Combine(WarFoundryHacks.dataPath, System.IO.Path.GetFileName(filePath));
+					File.Copy(filePath, newFilePath);
+				}
+
+				WarFoundryLoader.GetDefault().LoadFiles();
+			}
+		}
 	}
 }