diff --git a/examples/scripts/ssbj_mdo.py b/examples/scripts/ssbj_mdo.py
index d9f14a9d015167bf762baa95990e9dab570fc924..02ce14331b3db12ccfb08fa3815ccd3df800e778 100644
--- a/examples/scripts/ssbj_mdo.py
+++ b/examples/scripts/ssbj_mdo.py
@@ -95,7 +95,8 @@ rcg.add_contact_roles('lmuller', roles='integrator')
 
 # Create a DSM and a VISTOMS visualization of the RCG
 rcg.create_dsm('RCG_extended', include_system_vars=True, destination_folder=pdf_dir, function_order=function_order)
-rcg.vistoms_create(vistoms_dir, function_order=function_order)
+# rcg.vistoms_create(vistoms_dir, function_order=function_order)
+rcg.vistoms_start(vistoms_dir)
 
 # Save CMDOWS and KDMS file
 rcg.save('RCG', destination_folder=kdms_dir)
diff --git a/kadmos/graph/mixin_vistoms.py b/kadmos/graph/mixin_vistoms.py
index 00a8705f1feed9e4d76c8c0f1e003ed914be4d10..8e43b94848053882f86fd52129ae53d4a4b6ee32 100644
--- a/kadmos/graph/mixin_vistoms.py
+++ b/kadmos/graph/mixin_vistoms.py
@@ -69,7 +69,7 @@ class VistomsMixin(object):
             vistoms_dir = os.path.abspath(temp_dir)
 
         # Save the graph (self) in the folder
-        self.save('temp_01.kdms', destination_folder=vistoms_dir, mpg=mpg)
+        self.save('tmp_01.kdms', destination_folder=vistoms_dir, mpg=mpg)
 
         # Then run interactive VISTOMS
         from kadmos.vistoms.vistoms import run_vistoms
@@ -281,7 +281,7 @@ class VistomsMixin(object):
 
         return
 
-    def vistoms_add_json(self, vistoms_dir, mpg=None, function_order=None, reference_file=None, graph_id=None, replacement_id=None, xml_file=None):
+    def vistoms_add_json(self, vistoms_dir, mpg=None, function_order=None, reference_file=None, graph_id=None, xml_file=None):
         """Function to add a graph to a existing VISTOMS instance.
 
         In one VISTOMS instance different graphs can be shown. For example it is possible to include different
@@ -295,57 +295,35 @@ class VistomsMixin(object):
         :type function_order: list
         :param reference_file: file from which reference values are extracted (either full path or file in same folder)
         :type reference_file: str
-        :param replacement_id: indentifier of the graph to be replaced
-        :type replacement_id: basestr
         :param xml_file: Name of the CMDOWS xml-file
         :type xml_file: file
         """
 
         # Check inputs
         self._vistoms_assertions(mpg, function_order, reference_file, None, graph_id)
-        if replacement_id:
-            assert isinstance(replacement_id, str), 'The attribute replacement_id should be of type str.'
-        assert os.path.exists(vistoms_dir), 'There is not VISTOMS instance at %s.' % vistoms_dir
-        assert os.path.exists(os.path.join(vistoms_dir, VISTOMS_NAME)), VISTOMS_NAME + \
-                                                                           ' not found in folder %s.' % vistoms_dir
+        # assert os.path.exists(vistoms_dir), 'There is not VISTOMS instance at %s.' % vistoms_dir
+        # assert os.path.exists(os.path.join(vistoms_dir, VISTOMS_NAME)), VISTOMS_NAME + \
+        #                                                                    ' not found in folder %s.' % vistoms_dir
 
         # Logging
         logger.info('Adding graph to the VISTOMS instance (this might take a while)...')
 
         # Create vistoms file name path
-        vistoms_file = os.path.join(vistoms_dir, VISTOMS_NAME)
+        # vistoms_file = os.path.join(vistoms_dir, VISTOMS_NAME)
 
         # Get the graph data and line number
-        data, data_linenumber = _get_the_data(vistoms_file)
-
-
-        if data == 'REP__GRAPH_DATA__REP':
-            # Create dictionary for the data.json file
-            data = dict(graphs=[], categories=[])
-            # Add categories
-            data['categories'].append({'name': 'schema', 'description': 'schema'})
-            data['categories'].append({"name": "catschema_nodeLev", "description": "node levels"})
-            data['categories'].append({"name": "catschema_funLev", "description": "function levels"})
-            data['categories'].append({"name": "catschema_roleLev", "description": "role levels"})
-            data['categories'].append({"name": "catschema_sysLev", "description": "system levels"})
+        # data, data_linenumber = _get_the_data(vistoms_file)
 
 
-        if replacement_id is not None:
-            # Find IDs in the current data.json
-            graph_ids = [graph['id'] for graph in data['graphs']]
-            assert replacement_id in graph_ids, 'Could not find replacement_id: %s. Available IDs: %s.' % \
-                                                (replacement_id, graph_ids)
-            replacement_index = graph_ids.index(replacement_id)
-        if graph_id is None:
-            if replacement_id is None:
-                if data == 'REP__GRAPH_DATA__REP':
-                    graph_id = '01'
-                else:
-                    graph_id = str(len(data['graphs']) + 1).zfill(2)
-                    assert int(graph_id) < 100, 'graph_id (%d) should be smaller than 100.' % int(graph_id)
-            else:
-                graph_id = replacement_id
-
+        # if data == 'REP__GRAPH_DATA__REP':
+        # Create dictionary for the data.json file
+        data = dict(graphs=[], categories=[])
+        # Add categories
+        data['categories'].append({'name': 'schema', 'description': 'schema'})
+        data['categories'].append({"name": "catschema_nodeLev", "description": "node levels"})
+        data['categories'].append({"name": "catschema_funLev", "description": "function levels"})
+        data['categories'].append({"name": "catschema_roleLev", "description": "role levels"})
+        data['categories'].append({"name": "catschema_sysLev", "description": "system levels"})
 
 
         # Determine graph data entry
@@ -353,10 +331,7 @@ class VistomsMixin(object):
                                                          reference_file=reference_file, xml_file=xml_file)
 
         # Add graph_entry at the right location
-        if replacement_id is None:
-            data['graphs'].append(graph_entry)
-        else:
-            data['graphs'][replacement_index] = graph_entry
+        data['graphs'].append(graph_entry)
 
         # Replace the graph data
         data_str = json.dumps(data)