5 files changed, 38 insertions, 7 deletions
diff --git a/engines/sherlock/detection.cpp b/engines/sherlock/detection.cpp
index 78ab33bfd0..34fd919770 100644
--- a/engines/sherlock/detection.cpp
+++ b/engines/sherlock/detection.cpp
@@ -25,6 +25,7 @@
 #include "sherlock/scalpel/scalpel.h"
 #include "sherlock/tattoo/tattoo.h"
 #include "common/system.h"
+#include "common/translation.h"
 #include "engines/advancedDetector.h"
 
 namespace Sherlock {
@@ -57,11 +58,29 @@ static const PlainGameDescriptor sherlockGames[] = {
 	{0, 0}
 };
 
+
+#define GAMEOPTION_ORIGINAL_SAVES	GUIO_GAMEOPTIONS1
+
+static const ADExtraGuiOptionsMap optionsList[] = {
+	{
+		GAMEOPTION_ORIGINAL_SAVES,
+		{
+			_s("Use original savegame dialog"),
+			_s("Files button in-game shows original savegame dialog rather than ScummVM menu"),
+			"OriginalSaves",
+			false
+		}
+	},
+
+	AD_EXTRA_GUI_OPTIONS_TERMINATOR
+};
+
 #include "sherlock/detection_tables.h"
 
 class SherlockMetaEngine : public AdvancedMetaEngine {
 public:
-	SherlockMetaEngine() : AdvancedMetaEngine(Sherlock::gameDescriptions, sizeof(Sherlock::SherlockGameDescription), sherlockGames) {}
+	SherlockMetaEngine() : AdvancedMetaEngine(Sherlock::gameDescriptions, sizeof(Sherlock::SherlockGameDescription), 
+		sherlockGames, optionsList) {}
 
 	virtual const char *getName() const {
 		return "Sherlock Engine";
diff --git a/engines/sherlock/detection_tables.h b/engines/sherlock/detection_tables.h
index 975b7323ec..8300a0ffcf 100644
--- a/engines/sherlock/detection_tables.h
+++ b/engines/sherlock/detection_tables.h
@@ -33,7 +33,7 @@ static const SherlockGameDescription gameDescriptions[] = {
 			Common::EN_ANY,
 			Common::kPlatformDOS,
 			ADGF_UNSTABLE | ADGF_NO_FLAGS,
-			GUIO1(GUIO_NOSPEECH)
+			GUIO2(GUIO_NOSPEECH, GAMEOPTION_ORIGINAL_SAVES)
 		},
 		GType_SerratedScalpel,
 	},
diff --git a/engines/sherlock/sherlock.cpp b/engines/sherlock/sherlock.cpp
index a9a17a99f8..41c41473d7 100644
--- a/engines/sherlock/sherlock.cpp
+++ b/engines/sherlock/sherlock.cpp
@@ -48,6 +48,7 @@ SherlockEngine::SherlockEngine(OSystem *syst, const SherlockGameDescription *gam
 	_useEpilogue2 = false;
 	_loadGameSlot = -1;
 	_canLoadSave = false;
+	_showOriginalSavesDialog = false;
 }
 
 SherlockEngine::~SherlockEngine() {
@@ -104,6 +105,9 @@ Common::Error SherlockEngine::run() {
 	// Initialize the engine
 	initialize();
 
+	// Flag for whether to show original saves dialog rather than the ScummVM GMM
+	_showOriginalSavesDialog = ConfMan.hasKey("OriginalSaves") && ConfMan.getBool("OriginalSaves");
+
 	// If requested, load a savegame instead of showing the intro
 	if (ConfMan.hasKey("save_slot")) {
 		int saveSlot = ConfMan.getInt("save_slot");
diff --git a/engines/sherlock/sherlock.h b/engines/sherlock/sherlock.h
index 501fdcb292..33e4a45b40 100644
--- a/engines/sherlock/sherlock.h
+++ b/engines/sherlock/sherlock.h
@@ -108,6 +108,7 @@ public:
 	bool _useEpilogue2;
 	int _loadGameSlot;
 	bool _canLoadSave;
+	bool _showOriginalSavesDialog;
 public:
 	SherlockEngine(OSystem *syst, const SherlockGameDescription *gameDesc);
 	virtual ~SherlockEngine();
diff --git a/engines/sherlock/user_interface.cpp b/engines/sherlock/user_interface.cpp
index aa6bf2ba81..85838f8a93 100644
--- a/engines/sherlock/user_interface.cpp
+++ b/engines/sherlock/user_interface.cpp
@@ -1420,17 +1420,24 @@ void UserInterface::doMainControl() {
 			break;
 		case 'F':
 			pushButton(10);
-			_menuMode = FILES_MODE;
 
 			// Create a thumbnail of the current screen before the files dialog is shown, in case
 			// the user saves the game
 			saves.createThumbnail();
 
-			// Display the dialog
-			saves.drawInterface();
-
 			_selector = _oldSelector = -1;
-			_windowOpen = true;
+
+			if (_vm->_showOriginalSavesDialog) {
+				// Show the original dialog
+				_menuMode = FILES_MODE;
+				saves.drawInterface();
+				_windowOpen = true;
+			} else {
+				// Show the ScummVM GMM instead
+				_vm->_canLoadSave = true;
+				_vm->openMainMenuDialog();
+				_vm->_canLoadSave = false;
+			}
 			break;
 		case 'S':
 			pushButton(11);