diff --git a/dico_toolbox/anatomist/__init__.py b/dico_toolbox/anatomist/__init__.py
index 65cd3a9..ad12c4f 100644
--- a/dico_toolbox/anatomist/__init__.py
+++ b/dico_toolbox/anatomist/__init__.py
@@ -8,34 +8,77 @@
 os.environ["QT_API"] = "pyqt5"
 
 message_lines = ["NOTES for jupyter users:"
-                 "Remember to set '%gui qt' in a cell of your notebook"
+                 "Remember to set '%gui qt' in a cell of your notebook.\n"
                  "To hide anatomist logs, use the '%%capture' magic command at the beginning of the cell"]
 
 
 class Anatomist():
     info_displayed = False
-    instance = None
+    _instance = None
     windows = {}
+    objects = {}
+    blocks = {}
 
     def __init__(self):
         log.warning("/n".join(message_lines))
-        self.instance = anatomist.Anatomist()
+        self._instance = anatomist.Anatomist()
 
-    def new_window_3D(self, name="Default"):
-        w = self.instance.createWindow("3D", geometry=[1200, 350, 500, 500])
+    def _new_window(self, name, window_type, **kwargs):
+        w = self._instance.createWindow(window_type, **kwargs)
         self.windows[name] = w
+        return w
+
+    def new_window_block(self, name="DefaultBlock", columns=2, windows=("Axial", "Sagittal", "Coronal", "3D")):
+        """Create a new window block"""
+        block = self._instance.createWindowsBlock(2)  # 2 columns
+        wd = {wt: self._new_window(
+            f"{name}_{wt}", window_type=wt, block=block) for wt in windows}
+        self.windows.update(wd)
+        block.windows = wd
+        self.blocks[name] = block
+
+    def new_window_3D(self, name="Default", size=(500, 500), pos=(0, 0)):
+        """Create a new window"""
+        self._new_window(name, window_type="3D", geometry=pos + size)
+
+    def new_window_Sagittal(self, name="Default", size=(500, 500), pos=(0, 0)):
+        self._new_window(name, window_type="Sagittal", geometry=pos + size)
+
+    def new_window_Axial(self, name="Default", size=(500, 500), pos=(0, 0)):
+        self._new_window(name, window_type="Axial", geometry=pos + size)
+
+    def new_window_Coronal(self, name="Default", size=(500, 500), pos=(0, 0)):
+        self._new_window(name, window_type="Coronal", geometry=pos + size)
+
+    def get_window_names(self):
+        return list(self.windows.keys())
 
     def close(self):
-        self.instance.close()
+        self._instance.close()
+
+    def get_anatomist_instance(self):
+        return self._instance
+
+    def reload_objects(self):
+        self._instance.reloadObjects(self._instance.getObjects())
 
-    def add_objects(self, objects, window_name="Default"):
+    def _add_objects(self, objects, window_names=["Default"]):
         if type(objects) == dict:
             pass
         elif type(objects) in [list, tuple]:
             # list to dict
-            objects = {str(n): obj for n, obj in enumerate(object)}
+            objects = {str(n): obj for n, obj in enumerate(objects)}
 
         for name, obj in objects.items():
-            m = self.instance.toAObject(obj)
+            m = self._instance.toAObject(obj)
             m.name = name
-            m.addInWindows(self.windows[window_name])
+            m.addInWindows([self.windows[window_name]
+                           for window_name in window_names])
+            self.objects[name] = obj
+
+    def add_objects_to_window(self, objects, window_name="Default"):
+        self._add_objects(objects, window_names=[window_name])
+
+    def add_objects_to_block(self, objects, block_name="DefaultBlock"):
+        window_names = self.blocks[block_name].windows
+        self._add_objects(objects, window_names=window_names)
diff --git a/setup.py b/setup.py
index 08e48db..d5142bb 100644
--- a/setup.py
+++ b/setup.py
@@ -30,7 +30,7 @@
     long_description=long_description,
     long_description_content_type="text/markdown",
     url=release_info['URL'],
-    packages=['dico_toolbox'],
+    packages=setuptools.find_packages(),
     install_requires=release_info["REQUIRES"],
     classifiers=release_info["CLASSIFIERS"],
     extras_require=release_info['EXTRA_REQUIRES'],