diff --git a/.gitignore b/.gitignore
index 2f78cf5..0205d62 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,2 @@
 *.pyc
-
+.DS_Store
diff --git a/docs/pip-requirements.txt b/docs/pip-requirements.txt
index 6624270..cef2b6a 100644
--- a/docs/pip-requirements.txt
+++ b/docs/pip-requirements.txt
@@ -2,3 +2,4 @@ Django==1.5.1
 South==0.8.1
 distribute==0.6.34
 wsgiref==0.1.2
+-g git+http://github.com/sfrischkorn/rockviewer.git#egg=rockviewer
diff --git a/project_directory/common/migrations/0002_auto__add_field_sample_model_filename.py b/project_directory/common/migrations/0002_auto__add_field_sample_model_filename.py
new file mode 100644
index 0000000..9577c63
--- /dev/null
+++ b/project_directory/common/migrations/0002_auto__add_field_sample_model_filename.py
@@ -0,0 +1,40 @@
+# -*- coding: utf-8 -*-
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+        # Adding field 'Sample.model_filename'
+        db.add_column(u'common_sample', 'model_filename',
+                      self.gf('django.db.models.fields.CharField')(max_length=1000, null=True),
+                      keep_default=False)
+
+
+    def backwards(self, orm):
+        # Deleting field 'Sample.model_filename'
+        db.delete_column(u'common_sample', 'model_filename')
+
+
+    models = {
+        u'common.category': {
+            'Meta': {'object_name': 'Category'},
+            'active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'parent': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['common.Category']", 'null': 'True', 'on_delete': 'models.SET_NULL', 'blank': 'True'})
+        },
+        u'common.sample': {
+            'Meta': {'object_name': 'Sample'},
+            'active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'model_filename': ('django.db.models.fields.CharField', [], {'max_length': '1000', 'null': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'parent': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['common.Category']", 'null': 'True', 'on_delete': 'models.SET_NULL', 'blank': 'True'})
+        }
+    }
+
+    complete_apps = ['common']
\ No newline at end of file
diff --git a/project_directory/common/migrations/0003_auto__chg_field_sample_model_filename.py b/project_directory/common/migrations/0003_auto__chg_field_sample_model_filename.py
new file mode 100644
index 0000000..cf9f8c8
--- /dev/null
+++ b/project_directory/common/migrations/0003_auto__chg_field_sample_model_filename.py
@@ -0,0 +1,38 @@
+# -*- coding: utf-8 -*-
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+
+        # Changing field 'Sample.model_filename'
+        db.alter_column(u'common_sample', 'model_filename', self.gf('django.db.models.fields.CharField')(default='', max_length=1000))
+
+    def backwards(self, orm):
+
+        # Changing field 'Sample.model_filename'
+        db.alter_column(u'common_sample', 'model_filename', self.gf('django.db.models.fields.CharField')(max_length=1000, null=True))
+
+    models = {
+        u'common.category': {
+            'Meta': {'object_name': 'Category'},
+            'active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'parent': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['common.Category']", 'null': 'True', 'on_delete': 'models.SET_NULL', 'blank': 'True'})
+        },
+        u'common.sample': {
+            'Meta': {'object_name': 'Sample'},
+            'active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            u'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'model_filename': ('django.db.models.fields.CharField', [], {'max_length': '1000'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'parent': ('django.db.models.fields.related.ForeignKey', [], {'to': u"orm['common.Category']", 'null': 'True', 'on_delete': 'models.SET_NULL', 'blank': 'True'})
+        }
+    }
+
+    complete_apps = ['common']
\ No newline at end of file
diff --git a/project_directory/common/models.py b/project_directory/common/models.py
index 31e445e..018c8f7 100644
--- a/project_directory/common/models.py
+++ b/project_directory/common/models.py
@@ -14,9 +14,11 @@ class CommonInfo(models.Model):
 
 class Category(CommonInfo):
     parent = models.ForeignKey('self', blank=True, null=True,
-                               on_delete=models.SET_NULL)
+                               on_delete=models.SET_NULL,
+                               related_name='children')
 
 
 class Sample(CommonInfo):
+    model_filename = models.CharField(max_length=1000)
     parent = models.ForeignKey(Category, blank=True, null=True,
                                on_delete=models.SET_NULL)
diff --git a/project_directory/db.sqlite3 b/project_directory/db.sqlite3
index bb82efe..a14ce1b 100644
Binary files a/project_directory/db.sqlite3 and b/project_directory/db.sqlite3 differ
diff --git a/project_directory/rockviewer/settings.py b/project_directory/rockviewer/settings.py
index c54ce66..e30fe51 100644
--- a/project_directory/rockviewer/settings.py
+++ b/project_directory/rockviewer/settings.py
@@ -156,3 +156,11 @@ LOGGING = {
         },
     }
 }
+
+
+# Custom config settings
+MODEL_DIRS = (
+    # put model directories here, separated by commas. If there are
+    # models with the same name under different directories, the first
+    # directory will be used
+)
diff --git a/templates/children.html b/templates/children.html
new file mode 100644
index 0000000..6bd5d19
--- /dev/null
+++ b/templates/children.html
@@ -0,0 +1,7 @@
+<ul>
+    {% for child in children %}
+    <li> <a href="{{ child.get_absolute_url }}">{{ child }}</a></li>
+        {% child.children.count > 0 %}
+        {% children_list child %}
+    {% endfor %}
+</ul>
\ No newline at end of file
diff --git a/templates/main.html b/templates/main.html
new file mode 100644
index 0000000..38d7759
--- /dev/null
+++ b/templates/main.html
@@ -0,0 +1 @@
+{% children_tag parent %}
\ No newline at end of file