diff --git a/bin/client.py b/bin/client.py
index 4eb9bc0..9857c3c 100644
--- a/bin/client.py
+++ b/bin/client.py
@@ -53,7 +53,9 @@ class RenderThread(mp.Process, pyglet.window.Window):
     """
 
     def on_draw(self):
-        pass
+        # render parts
+        for part in self.parts:
+            pass
 
     def on_mouse_motion(self, x, y, dx, dy):
         pass
diff --git a/docs/configes sample/in_file_config.json5 b/docs/configes sample/in_file_config.json5
index babfff0..278b218 100644
--- a/docs/configes sample/in_file_config.json5	
+++ b/docs/configes sample/in_file_config.json5	
@@ -8,5 +8,20 @@
     }
   },
   'client': {
+    'self.parts': {
+      'part ID': [
+        // shipId.partId
+        'part Type',
+        // just id
+        [
+          'x',
+          'y'
+        ],
+        //poi
+        {
+          'special value': 'xxx'
+        }
+      ]
+    }
   }
 }
\ No newline at end of file