diff --git a/pixelocr/gui/glyphdbedit.py b/pixelocr/gui/glyphdbedit.py
index 00e3771..1b319ed 100644
--- a/pixelocr/gui/glyphdbedit.py
+++ b/pixelocr/gui/glyphdbedit.py
@@ -43,7 +43,7 @@ class GlyphDBModel(QAbstractTableModel):
         return len(self.keys)
 
     def columnCount(self, parent):
-        return 1
+        return 2
 
     def _deserialize_image(self, key):
         elevation_, serialized_image = key
@@ -62,6 +62,8 @@ class GlyphDBModel(QAbstractTableModel):
             return None
         if section == 0:
             return 'Text'
+        elif section == 1:
+            return 'Elevation'
 
     def data(self, index, role):
         if index.column() == 0:
@@ -70,6 +72,10 @@ class GlyphDBModel(QAbstractTableModel):
                 return self.glyphdb[key]
             elif role == Qt.DecorationRole:
                 return self.get_image(key)
+        elif index.column() == 1:
+            if role == Qt.DisplayRole:
+                elevation, _ = self.keys[index.row()]
+                return str(elevation)
 
     def removeRows(self, row, count, parent=None):
         self.beginRemoveRows(parent, row, row + count - 1)
@@ -83,9 +89,18 @@ class GlyphDBModel(QAbstractTableModel):
         return True
 
     def sort(self, column, order):
+        key_func = None
         if column == 0:
+            def key_func(key):
+                return self.glyphdb[key]
+        elif column == 1:
+            def key_func(key):
+                elevation, *_ = key
+                return elevation
+
+        if key_func:
             self.layoutAboutToBeChanged.emit()
-            self.keys.sort(key=lambda key: self.glyphdb[key], reverse = (order == Qt.DescendingOrder))
+            self.keys.sort(key=key_func, reverse = (order == Qt.DescendingOrder))
             self.layoutChanged.emit()