diff --git a/backend/csv_file_metadata.py b/backend/csv_file_metadata.py
index 2b2c1c0..bcebb3d 100644
--- a/backend/csv_file_metadata.py
+++ b/backend/csv_file_metadata.py
@@ -4,11 +4,12 @@ from datetime import datetime
 # ===== CSV Metadata Model =====
 class CSVFileMetadata:
     # ===== Lifecycle =====
-    def __init__(self, wafer="", date="", chamber="", notes="", filename="", columns=0):
+    def __init__(self, wafer="", date="", chamber="", notes="", master_type="", filename="", columns=0):
         self.wafer = wafer
         self.date = date
         self.chamber = chamber
         self.notes = notes
+        self.master_type = master_type
 
         self.filename = filename
         self.columns = columns
@@ -42,6 +43,7 @@ class CSVFileMetadata:
             "date": self.string_date_format(),  # Ensure we save as string
             "chamber": self.chamber,
             "notes": self.notes,
+            "masterType": self.master_type,
         }
 
     def string_date_format(self) -> str:
diff --git a/backend/file_browser.py b/backend/file_browser.py
index d057558..9d1035b 100644
--- a/backend/file_browser.py
+++ b/backend/file_browser.py
@@ -54,7 +54,7 @@ class FileBrowser(QObject):
         self._refresh_files(show_empty_message=False)
 
     # ===== Metadata Persistence =====
-    @Slot(str, str, str, str, str, bool)
+    @Slot(str, str, str, str, str, bool, str)
     def saveMetadata(
         self,
         file_path: str,
@@ -63,6 +63,7 @@ class FileBrowser(QObject):
         chamber: str,
         notes: str,
         selected: bool,
+        master_type: str = "",
     ) -> None:
         csv_path = Path(file_path)
         if not csv_path.exists():
@@ -79,12 +80,14 @@ class FileBrowser(QObject):
         row["chamber"] = chamber
         row["notes"] = notes
         row["selected"] = selected
+        row["masterType"] = master_type
 
         payload = {
             "wafer": wafer,
             "date": date,
             "chamber": chamber,
             "notes": notes,
+            "masterType": master_type,
         }
 
         try:
@@ -103,6 +106,10 @@ class FileBrowser(QObject):
             str(row.get("fileName", "")): bool(row.get("selected", False))
             for row in self._files
         }
+        master_state = {
+            str(row.get("fileName", "")): row.get("masterType", "") or ""
+            for row in self._files
+        }
 
         self._files = []
 
@@ -120,6 +127,7 @@ class FileBrowser(QObject):
                         "date": metadata.string_date_format(),
                         "chamber": metadata.chamber,
                         "notes": metadata.notes,
+                        "masterType": master_state.get(str(csv_path), "") or metadata.master_type,
                         "fileName": str(csv_path),
                         "highlight": metadata.get_wafer_type() in {"A", "B", "C"},
                     }
@@ -132,6 +140,7 @@ class FileBrowser(QObject):
                         "date": "",
                         "chamber": "",
                         "notes": "Unable to parse metadata",
+                        "masterType": master_state.get(str(csv_path), ""),
                         "fileName": str(csv_path),
                         "highlight": False,
                     }
@@ -152,6 +161,7 @@ class FileBrowser(QObject):
                     date=str(payload.get("date", "")),
                     chamber=str(payload.get("chamber", "")),
                     notes=str(payload.get("notes", "")),
+                    master_type=str(payload.get("masterType", "")),
                     filename=str(csv_path),
                 )
             except Exception:
@@ -222,6 +232,37 @@ class FileBrowser(QObject):
     def _show_error(self, message: str) -> None:
         QMessageBox.critical(None, "iSenseCloud", message)
 
+    @Slot(str)
+    def showInfo(self, message: str) -> None:
+        self._show_info(message)
+
+    @Slot(str, result="QVariantMap")
+    def parseCsvMetadata(self, file_path: str) -> dict:
+        from pathlib import Path as _Path
+
+        csv_path = _Path(file_path)
+        if not csv_path.exists():
+            return {"success": False, "error": "File not found"}
+
+        parser_data, _ = self._parser.parse(file_path)
+        if parser_data is None:
+            return {"success": False, "error": "Failed to parse CSV"}
+
+        wafer = parser_data.serial or ""
+        date_text = ""
+        if parser_data.date != datetime.min:
+            date_text = CSVFileMetadata.format_date(parser_data.date)
+        columns = len(parser_data.csv_headers) if parser_data.csv_headers else 0
+        family_code = wafer[0].upper() if wafer else ""
+
+        return {
+            "success": True,
+            "wafer": wafer,
+            "date": date_text,
+            "columns": columns,
+            "familyCode": family_code,
+        }
+
     def _show_info(self, message: str) -> None:
         QMessageBox.information(None, "iSenseCloud", message)
 
diff --git a/backend/local_settings_model.py b/backend/local_settings_model.py
index f58ca7f..2c221a9 100644
--- a/backend/local_settings_model.py
+++ b/backend/local_settings_model.py
@@ -48,14 +48,16 @@ class LocalSettingsModel(QObject):
         self._recompute_derived()
 
     def _resolve_data_dir(self) -> Path:
-        documents_dir = QStandardPaths.writableLocation(QStandardPaths.DocumentsLocation)
+        documents_dir = QStandardPaths.writableLocation(
+            QStandardPaths.DocumentsLocation
+        )
         base_dir = Path(documents_dir) if documents_dir else (Path.home() / "Documents")
         return base_dir / "isc_data"
 
     def _new_defaults(self) -> dict[str, Any]:
         return {
             "chamberId": "2",
-            "reverseZWafer": True,
+            "reverseZWafer": False,
             "debugMode": False,
             "waferReadTimeout": 120000,
             "waferDetectTimeout": 5000,
@@ -250,7 +252,9 @@ class LocalSettingsModel(QObject):
     @Slot()
     def loadSettings(self) -> None:
         loaded = LocalSettings.read_settings(str(self._data_dir))
-        self._chamber_id = str(loaded.chamber_id).strip() or str(self._defaults["chamberId"])
+        self._chamber_id = str(loaded.chamber_id).strip() or str(
+            self._defaults["chamberId"]
+        )
         self._reverse_z_wafer = bool(loaded.reverse_z_wafer)
         self._debug_mode = bool(loaded.debug)
         self._wafer_read_timeout = int(loaded.wafer_read_timeout)
diff --git a/requirements.txt b/requirements.txt
index acc0c78..4e03671 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,4 @@
 # ===== Runtime Dependencies =====
-PySide6
+PySide6>=6.6.0
+pyqtgraph>=0.13.0
+numpy>=1.24.0