diff --git a/django_project/core/admin.py b/django_project/core/admin.py
index d487391..0b9292f 100644
--- a/django_project/core/admin.py
+++ b/django_project/core/admin.py
@@ -15,6 +15,11 @@ class SitePreferencesAdmin(admin.ModelAdmin):
                 'api_config',
             )
         }),
+        ('Output Group to Keep', {
+            'fields': (
+                'output_group_to_keep',
+            )
+        }),
     )
 
 
diff --git a/django_project/cplus_api/api_views/output.py b/django_project/cplus_api/api_views/output.py
index 8544998..5e274ef 100644
--- a/django_project/cplus_api/api_views/output.py
+++ b/django_project/cplus_api/api_views/output.py
@@ -47,7 +47,8 @@ class UserScenarioAnalysisOutput(BaseScenarioReadAccess, APIView):
         tags=[SCENARIO_OUTPUT_API_TAG],
         manual_parameters=[
             PARAM_SCENARIO_UUID_IN_PATH,
-            param_all_outputs
+            param_all_outputs,
+            param_group
         ] + PARAMS_PAGINATION,
         responses={
             200: PaginatedOutputLayerSerializer,