diff --git a/src/scenario/scenario.hpp b/src/scenario/scenario.hpp
index ee0d96aa..d6704cfe 100644
--- a/src/scenario/scenario.hpp
+++ b/src/scenario/scenario.hpp
@@ -219,7 +219,7 @@ inline scen_details_t details_from_scen(cScenario& scen) {
 	};
 }
 
-inline void scen_set_details(cScenario& scen, scen_details_t details) {
+inline void scen_set_details(cScenario& scen, const scen_details_t& details) {
 	scen.difficulty = details.difficulty;
 	scen.rating = details.rating;
 	scen.scen_name = details.scen_name;
@@ -252,9 +252,56 @@ inline scen_intro_t intro_from_scen(cScenario& scen) {
 	return { scen.intro_pic, scen.intro_strs };
 }
 
-inline void scen_set_intro(cScenario& scen, scen_intro_t details) {
+inline void scen_set_intro(cScenario& scen, const scen_intro_t& details) {
 	scen.intro_pic = details.intro_pic;
 	scen.intro_strs = details.intro_strs;
 }
 
+// Store a version the scenario advanced details for undo history.
+// This could be made a struct that cScenario contains, and that would eliminate the next 2 functions, but it would
+// require changing every reference to these detail values in the game and fileio code, making them more verbose. I don't know
+// if that's worth it.
+struct scen_advanced_t {
+	bool adjust_diff;
+	std::string campaign_id;
+	int bg_out;
+	int bg_town;
+	int bg_dungeon;
+	int bg_fight;
+	spec_num_t init_spec;
+	bool operator==(const scen_advanced_t& other) const {
+		CHECK_EQ(other, adjust_diff);
+		CHECK_EQ(other, campaign_id);
+		CHECK_EQ(other, bg_out);
+		CHECK_EQ(other, bg_town);
+		CHECK_EQ(other, bg_dungeon);
+		CHECK_EQ(other, bg_fight);
+		CHECK_EQ(other, init_spec);
+		return true;
+	}
+	bool operator!=(const scen_advanced_t& other) const { return !(*this == other); }
+};
+
+inline scen_advanced_t advanced_from_scen(cScenario& scen) {
+	return {
+		scen.adjust_diff,
+		scen.campaign_id,
+		scen.bg_out,
+		scen.bg_town,
+		scen.bg_dungeon,
+		scen.bg_fight,
+		scen.init_spec
+	};
+}
+
+inline void scen_set_advanced(cScenario& scen, const scen_advanced_t& details) {
+	scen.adjust_diff = details.adjust_diff;
+	scen.campaign_id = details.campaign_id;
+	scen.bg_out = details.bg_out;
+	scen.bg_town = details.bg_town;
+	scen.bg_dungeon = details.bg_dungeon;
+	scen.bg_fight = details.bg_fight;
+	scen.init_spec = details.init_spec;
+}
+
 #endif
diff --git a/src/scenedit/scen.core.cpp b/src/scenedit/scen.core.cpp
index a02ada73..3230fb27 100644
--- a/src/scenedit/scen.core.cpp
+++ b/src/scenedit/scen.core.cpp
@@ -3184,14 +3184,23 @@ void edit_scen_adv_details() {
 	info_dlg.run();
 
 	if(info_dlg.accepted()){
-		scenario.adjust_diff = dynamic_cast<cLed&>(info_dlg["adjust"]).getState() != led_red;
+		scen_advanced_t old_advanced = advanced_from_scen(scenario);
+		scen_advanced_t new_advanced;
 
-		scenario.campaign_id = info_dlg["cpnid"].getText();
-		scenario.bg_out = boost::lexical_cast<int>(info_dlg["bg-out"].getText().substr(10));
-		scenario.bg_town = boost::lexical_cast<int>(info_dlg["bg-town"].getText().substr(10));
-		scenario.bg_dungeon = boost::lexical_cast<int>(info_dlg["bg-dungeon"].getText().substr(13));
-		scenario.bg_fight = boost::lexical_cast<int>(info_dlg["bg-fight"].getText().substr(11));
-		scenario.init_spec = info_dlg["oninit"].getTextAsNum();
+		new_advanced.adjust_diff = dynamic_cast<cLed&>(info_dlg["adjust"]).getState() == led_red;
+
+		new_advanced.campaign_id = info_dlg["cpnid"].getText();
+		new_advanced.bg_out = boost::lexical_cast<int>(info_dlg["bg-out"].getText().substr(10));
+		new_advanced.bg_town = boost::lexical_cast<int>(info_dlg["bg-town"].getText().substr(10));
+		new_advanced.bg_dungeon = boost::lexical_cast<int>(info_dlg["bg-dungeon"].getText().substr(13));
+		new_advanced.bg_fight = boost::lexical_cast<int>(info_dlg["bg-fight"].getText().substr(11));
+		new_advanced.init_spec = info_dlg["oninit"].getTextAsNum();
+
+		if(old_advanced != new_advanced){
+			scen_set_advanced(scenario, new_advanced);
+			undo_list.add(action_ptr(new aEditAdvancedDetails(old_advanced, new_advanced)));
+			update_edit_menu();
+		}
 	}
 }
 
diff --git a/src/scenedit/scen.undo.cpp b/src/scenedit/scen.undo.cpp
index 5fba78c9..ff4be791 100644
--- a/src/scenedit/scen.undo.cpp
+++ b/src/scenedit/scen.undo.cpp
@@ -888,4 +888,14 @@ bool aClassifyGraphics::undo_me() {
 bool aClassifyGraphics::redo_me() {
 	scenario.custom_graphics = new_types;
 	return true;
+}
+
+bool aEditAdvancedDetails::undo_me() {
+	scen_set_advanced(scenario, old_advanced);
+	return true;
+}
+
+bool aEditAdvancedDetails::redo_me() {
+	scen_set_advanced(scenario, new_advanced);
+	return true;
 }
\ No newline at end of file
diff --git a/src/scenedit/scen.undo.hpp b/src/scenedit/scen.undo.hpp
index 6db261d5..95c980c9 100644
--- a/src/scenedit/scen.undo.hpp
+++ b/src/scenedit/scen.undo.hpp
@@ -542,4 +542,14 @@ public:
 		cAction("Classify Custom Graphics"), old_types(old_types), new_types(new_types) {}
 };
 
+class aEditAdvancedDetails : public cAction {
+	scen_advanced_t old_advanced;
+	scen_advanced_t new_advanced;
+	bool undo_me() override;
+	bool redo_me() override;
+public:
+	aEditAdvancedDetails(scen_advanced_t old_advanced, scen_advanced_t new_advanced) :
+		cAction("Edit Advanced Details"), old_advanced(old_advanced), new_advanced(new_advanced) {}
+};
+
 #endif
\ No newline at end of file