diff --git a/atlas/migrations/0039_alter_casecollection_collection_type.py b/atlas/migrations/0039_alter_casecollection_collection_type.py
new file mode 100644
index 00000000..54bd2728
--- /dev/null
+++ b/atlas/migrations/0039_alter_casecollection_collection_type.py
@@ -0,0 +1,18 @@
+# Generated by Django 4.1.4 on 2024-02-17 21:22
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('atlas', '0038_casecollection_viewer_mode'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='casecollection',
+            name='collection_type',
+            field=models.CharField(choices=[('REV', 'Review'), ('REP', 'Report'), ('VIV', 'Viva')], default='REP', max_length=3),
+        ),
+    ]
diff --git a/atlas/models.py b/atlas/models.py
index 8dc94dbe..a1597fc4 100644
--- a/atlas/models.py
+++ b/atlas/models.py
@@ -355,6 +355,7 @@ class Case(models.Model, AuthorMixin):
     )
 
     series = SortedManyToManyField("Series", related_name="case")
+    #series = models.ManyToManyField("Series", through="SeriesDetail", related_name="case")
 
     notes = GenericRelation(QuestionNote)
 
@@ -868,6 +869,14 @@ class CaseCollection(ExamOrCollectionGenericBase):
         }
 
 
+#class SeriesDetail(models.Model):
+#    case = models.ForeignKey(Case, on_delete=models.CASCADE)
+#    series = models.ForeignKey(Series, on_delete=models.CASCADE)
+#
+#    sort_order = models.IntegerField(default=1000)
+#
+#    class Meta:
+#        ordering = ("sort_order",)
 
 class CaseDetail(models.Model):
     case = models.ForeignKey(Case, on_delete=models.CASCADE)