diff --git a/multi_user/bl_types/bl_material.py b/multi_user/bl_types/bl_material.py
index f016277..6aee06a 100644
--- a/multi_user/bl_types/bl_material.py
+++ b/multi_user/bl_types/bl_material.py
@@ -245,9 +245,8 @@ def dump_node_tree(node_tree: bpy.types.ShaderNodeTree) -> dict:
         'type': type(node_tree).__name__
     }
 
-    for socket_id in ['inputs', 'outputs']:
-        socket_collection = getattr(node_tree, socket_id)
-        node_tree_data[socket_id] = dump_node_tree_sockets(socket_collection)
+    sockets = [item for item in node_tree.interface.items_tree if item.item_type == 'SOCKET']
+    node_tree_data['interface'] = dump_node_tree_sockets(sockets)
 
     return node_tree_data
 
@@ -263,18 +262,18 @@ def dump_node_tree_sockets(sockets: bpy.types.Collection) -> dict:
     """
     sockets_data = []
     for socket in sockets:
-        try:
-            socket_uuid = socket['uuid']
-        except Exception:
-            socket_uuid = str(uuid4())
-            socket['uuid'] = socket_uuid
-
-        sockets_data.append((socket.name, socket.bl_socket_idname, socket_uuid))
+        sockets_data.append(
+            (
+                socket.name, 
+                socket.socket_type,
+                socket.in_out
+            )
+        )
 
     return sockets_data
 
 
-def load_node_tree_sockets(sockets: bpy.types.Collection,
+def load_node_tree_sockets(interface: bpy.types.NodeTreeInterface,
                            sockets_data: dict):
     """ load sockets of a shader_node_tree
 
@@ -285,20 +284,17 @@ def load_node_tree_sockets(sockets: bpy.types.Collection,
         :arg socket_data: dumped socket data
         :type socket_data: dict
     """
-    # Check for removed sockets
-    for socket in sockets:
-        if not [s for s in sockets_data if 'uuid' in socket and socket['uuid'] == s[2]]:
-            sockets.remove(socket)
+    # Remove old sockets
+    interface.clear()    
 
     # Check for new sockets
-    for idx, socket_data in enumerate(sockets_data):
-        try:
-            checked_socket = sockets[idx]
-            if checked_socket.name != socket_data[0]:
-                checked_socket.name = socket_data[0]
-        except Exception:
-            s = sockets.new(socket_data[1], socket_data[0])
-            s['uuid'] = socket_data[2]
+    for name, socket_type, in_out  in sockets_data:
+        socket = interface.new_socket(
+            name,
+            in_out=in_out,
+            socket_type=socket_type
+        )
+  
 
 
 def load_node_tree(node_tree_data: dict, target_node_tree: bpy.types.ShaderNodeTree) -> dict:
@@ -315,13 +311,8 @@ def load_node_tree(node_tree_data: dict, target_node_tree: bpy.types.ShaderNodeT
     if not target_node_tree.is_property_readonly('name'):
         target_node_tree.name = node_tree_data['name']
 
-    if 'inputs' in node_tree_data:
-        socket_collection = getattr(target_node_tree, 'inputs')
-        load_node_tree_sockets(socket_collection, node_tree_data['inputs'])
-
-    if 'outputs' in node_tree_data:
-        socket_collection = getattr(target_node_tree,  'outputs')
-        load_node_tree_sockets(socket_collection, node_tree_data['outputs'])
+    if 'interface' in node_tree_data:
+        load_node_tree_sockets(target_node_tree.interface, node_tree_data['interface'])
 
     # Load nodes
     for node in node_tree_data["nodes"]:
diff --git a/multi_user/bl_types/bl_mesh.py b/multi_user/bl_types/bl_mesh.py
index 2b7e31a..8f49655 100644
--- a/multi_user/bl_types/bl_mesh.py
+++ b/multi_user/bl_types/bl_mesh.py
@@ -37,8 +37,8 @@ VERTICE = ['co']
 
 EDGE = [
     'vertices',
-    'crease',
-    'bevel_weight',
+    # 'crease',
+    # 'bevel_weight',
     'use_seam',
     'use_edge_sharp',
 ]
diff --git a/multi_user/presence.py b/multi_user/presence.py
index 2da5096..00755a1 100644
--- a/multi_user/presence.py
+++ b/multi_user/presence.py
@@ -253,11 +253,9 @@ class Widget(object):
         return True
 
     def configure_bgl(self):
-        bgl.glLineWidth(2.)
-        bgl.glEnable(bgl.GL_DEPTH_TEST)
-        bgl.glEnable(bgl.GL_BLEND)
-        bgl.glEnable(bgl.GL_LINE_SMOOTH)
-
+        gpu.state.blend_set('ALPHA')
+        gpu.state.depth_test_set('LESS_EQUAL')
+        gpu.state.line_width_set(2.0)
 
     def draw(self):
         """How to draw the widget
@@ -300,7 +298,7 @@ class UserFrustumWidget(Widget):
 
     def draw(self):
         location = self.data.get('view_corners')
-        shader = gpu.shader.from_builtin('3D_UNIFORM_COLOR')
+        shader = gpu.shader.from_builtin('UNIFORM_COLOR')
         positions = [tuple(coord) for coord in location]
 
         if len(positions) != 7:
@@ -372,7 +370,7 @@ class UserSelectionWidget(Widget):
             vertex_pos += bbox_pos
             vertex_ind += bbox_ind
 
-        shader = gpu.shader.from_builtin('3D_UNIFORM_COLOR')
+        shader = gpu.shader.from_builtin('UNIFORM_COLOR')
         batch = batch_for_shader(
             shader,
             'LINES',
@@ -421,7 +419,7 @@ class UserNameWidget(Widget):
 
         if coords:
             blf.position(0, coords[0], coords[1]+10, 0)
-            blf.size(0, 16, 72)
+            blf.size(0, 16)
             blf.color(0, color[0], color[1], color[2], color[3])
             blf.draw(0,  self.username)
 
@@ -511,7 +509,7 @@ class SessionStatusWidget(Widget):
         vpos = (self.preferences.presence_hud_vpos*bpy.context.area.height)/100
 
         blf.position(0, hpos, vpos, 0)
-        blf.size(0, int(text_scale*ui_scale), 72)
+        blf.size(0, int(text_scale*ui_scale))
         blf.color(0, color[0], color[1], color[2], color[3])
         blf.draw(0,  state_str)