diff --git a/src/modules/stream/road_lines_editor.cpp b/src/modules/stream/road_lines_editor.cpp
index ab3d4ac..95bfb39 100644
--- a/src/modules/stream/road_lines_editor.cpp
+++ b/src/modules/stream/road_lines_editor.cpp
@@ -324,6 +324,9 @@ protected:
 				->show();
 			update_metadata_editor();
 			break;
+		case 30:
+			editor->remove_generated_stuff();
+			break;
 		case 51:
 			editor->set_point_to_cursor();
 			break;
@@ -988,6 +991,11 @@ String RoadLinesEditor::get_current_line_metadata() const
 	assert(lines.has(current_line));
 	return JSON::print(lines[current_line].metadata, "\t", true);
 }
+void RoadLinesEditor::remove_generated_stuff()
+{
+	Array args;
+	editor->editor_command("remove_generated_stuff", args);
+}
 template <class T> T *RoadLinesEditor::get_as_node(const String &path)
 {
 	Node *node = scene()->get_node(NodePath(path));
diff --git a/src/modules/stream/road_lines_editor.h b/src/modules/stream/road_lines_editor.h
index bfa71d8..25ac4ef 100644
--- a/src/modules/stream/road_lines_editor.h
+++ b/src/modules/stream/road_lines_editor.h
@@ -42,6 +42,7 @@ public:
 	void save_data();
 	void update_current_line_metadata(const String &text);
 	String get_current_line_metadata() const;
+	void remove_generated_stuff();
 
 protected:
 	void activate();
diff --git a/src/modules/stream/stream.cpp b/src/modules/stream/stream.cpp
index 5726432..0805436 100644
--- a/src/modules/stream/stream.cpp
+++ b/src/modules/stream/stream.cpp
@@ -385,6 +385,27 @@ void StreamWorld::remove_generated_stuff()
 	ERR_FAIL_COND_MSG(result != OK, "Failed to load config");
 	Array gen_prefixes = config.get_value("lines", "gen_prefixes");
 	// TODO: implement
+	std::vector<int> erased_indices;
+	erased_indices.reserve(buildings.size());
+	int i, j;
+	for (i = 0; i < (int)buildings.size(); i++) {
+		for (j = 0; j < (int)gen_prefixes.size(); j++) {
+			String prefix = gen_prefixes[j];
+			if (buildings[i].id.begins_with(prefix)) {
+				erased_indices.push_back(i);
+				break;
+			}
+		}
+	}
+	for (i = erased_indices.size() - 1; i >= 0; i--) {
+		int index = erased_indices[i];
+		unload_building(index);
+		buildings.erase(buildings.begin() + index);
+		for (j = index; j < (int)buildings.size(); j++)
+			item_nodes[j] = item_nodes[j + 1];
+		item_nodes.erase(buildings.size());
+	}
+	update_items();
 }
 
 void StreamWorld::remove_building(int index)
diff --git a/src/modules/stream/world_editor.cpp b/src/modules/stream/world_editor.cpp
index 0efe2cf..f12356a 100644
--- a/src/modules/stream/world_editor.cpp
+++ b/src/modules/stream/world_editor.cpp
@@ -239,6 +239,8 @@ void WorldEditor::editor_command(const String &command, const Array &args)
 		}
 	} else if (command == "select_building") {
 		select_building(args[0], args[1], args[2]);
+	} else if (command == "remove_generated_stuff") {
+		stream_world->run_command(command, args);
 	} else if (road_lines_editor) {
 		road_lines_editor->editor_command(command, args);
 	}