diff --git a/.gitignore b/.gitignore
index e81c4706..31d6b3f8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 settings_local.py
 *.swp
 *.pyc
+re2o.png
 __pycache__/*
 static_files/*
diff --git a/re2o/settings.py b/re2o/settings.py
index 7cf10b42..805c9bcc 100644
--- a/re2o/settings.py
+++ b/re2o/settings.py
@@ -12,7 +12,7 @@ https://docs.djangoproject.com/en/1.8/ref/settings/
 
 # Build paths inside the project like this: os.path.join(BASE_DIR, ...)
 import os
-from .settings_local import SECRET_KEY, DATABASES, DEBUG, ALLOWED_HOSTS, SECURE_CONTENT_TYPE_NOSNIFF, SECURE_BROWSER_XSS_FILTER, SESSION_COOKIE_SECURE, CSRF_COOKIE_SECURE, CSRF_COOKIE_HTTPONLY, X_FRAME_OPTIONS, SESSION_COOKIE_AGE, ASSO_NAME, ASSO_ADDRESS_LINE1, ASSO_ADDRESS_LINE2, ASSO_SIRET, ASSO_EMAIL, ASSO_PHONE, LOGO_PATH, services_urls, REQ_EXPIRE_HRS, REQ_EXPIRE_STR, EMAIL_FROM, SITE_NAME, LDAP, MAIN_EXTENSION, GID_RANGES, UID_RANGES, ASSO_PSEUDO, SEARCH_RESULT, MAX_INTERFACES, MAX_ALIAS, VLAN_ID_LIST, RADIUS_VLAN_DECISION
+from .settings_local import SECRET_KEY, DATABASES, DEBUG, ALLOWED_HOSTS, SECURE_CONTENT_TYPE_NOSNIFF, SECURE_BROWSER_XSS_FILTER, SESSION_COOKIE_SECURE, CSRF_COOKIE_SECURE, CSRF_COOKIE_HTTPONLY, X_FRAME_OPTIONS, SESSION_COOKIE_AGE, ASSO_NAME, ASSO_ADDRESS_LINE1, ASSO_ADDRESS_LINE2, ASSO_SIRET, ASSO_EMAIL, ASSO_PHONE, LOGO_PATH, services_urls, REQ_EXPIRE_HRS, REQ_EXPIRE_STR, EMAIL_FROM, SITE_NAME, LDAP, MAIN_EXTENSION, GID_RANGES, UID_RANGES, ASSO_PSEUDO, SEARCH_RESULT, MAX_INTERFACES, MAX_ALIAS, VLAN_ID_LIST, RADIUS_VLAN_DECISION, OPTIONNAL_APPS
 
 BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 
@@ -51,7 +51,7 @@ INSTALLED_APPS = (
     'logs',
     'rest_framework',
     'reversion'
-)
+) + OPTIONNAL_APPS
 
 MIDDLEWARE_CLASSES = (
     'django.contrib.sessions.middleware.SessionMiddleware',
@@ -136,3 +136,8 @@ RIGHTS_LINK = {
 PAGINATION_NUMBER = 25
 
 PAGINATION_LARGE_NUMBER = 8
+
+GRAPH_MODELS = {
+  'all_applications': True,
+  'group_models': True,
+}