diff --git a/invesalius/constants.py b/invesalius/constants.py
index 70218e4..47d882a 100644
--- a/invesalius/constants.py
+++ b/invesalius/constants.py
@@ -521,6 +521,9 @@ ID_FLOODFILL_MASK = wx.NewId()
 ID_FILL_HOLE_AUTO = wx.NewId()
 ID_REMOVE_MASK_PART = wx.NewId()
 ID_SELECT_MASK_PART = wx.NewId()
+ID_MANUAL_SEGMENTATION = wx.NewId()
+ID_WATERSHED_SEGMENTATION = wx.NewId()
+ID_THRESHOLD_SEGMENTATION = wx.NewId()
 ID_FLOODFILL_SEGMENTATION = wx.NewId()
 ID_CROP_MASK = wx.NewId()
 
diff --git a/invesalius/data/slice_.py b/invesalius/data/slice_.py
index af70f59..d773c6f 100644
--- a/invesalius/data/slice_.py
+++ b/invesalius/data/slice_.py
@@ -184,6 +184,7 @@ class Slice(object):
 
         Publisher.subscribe(self.OnEnableStyle, 'Enable style')
         Publisher.subscribe(self.OnDisableStyle, 'Disable style')
+        Publisher.subscribe(self.OnDisableActualStyle, 'Disable actual style')
 
         Publisher.subscribe(self.OnRemoveMasks, 'Remove masks')
         Publisher.subscribe(self.OnDuplicateMasks, 'Duplicate masks')
@@ -263,6 +264,9 @@ class Slice(object):
                 Publisher.sendMessage('Set interactor default cursor')
             self.state = new_state
 
+    def OnDisableActualStyle(self, pubsub_evt):
+        self.interaction_style.Reset()
+
     def OnCloseProject(self, pubsub_evt):
         self.CloseProject()
 
diff --git a/invesalius/gui/frame.py b/invesalius/gui/frame.py
index 11c2f57..436720d 100644
--- a/invesalius/gui/frame.py
+++ b/invesalius/gui/frame.py
@@ -446,6 +446,21 @@ class Frame(wx.Frame):
         elif id == const.ID_REORIENT_IMG:
             self.OnReorientImg()
 
+        elif id == const.ID_THRESHOLD_SEGMENTATION:
+            Publisher.sendMessage("Show panel", const.ID_THRESHOLD_SEGMENTATION)
+            Publisher.sendMessage('Disable actual style')
+            Publisher.sendMessage('Enable style', const.STATE_DEFAULT)
+
+        elif id == const.ID_MANUAL_SEGMENTATION:
+            Publisher.sendMessage("Show panel", const.ID_MANUAL_SEGMENTATION)
+            Publisher.sendMessage('Disable actual style')
+            Publisher.sendMessage('Enable style', const.SLICE_STATE_EDITOR)
+
+        elif id == const.ID_WATERSHED_SEGMENTATION:
+            Publisher.sendMessage("Show panel", const.ID_WATERSHED_SEGMENTATION)
+            Publisher.sendMessage('Disable actual style')
+            Publisher.sendMessage('Enable style', const.SLICE_STATE_WATERSHED)
+
         elif id == const.ID_FLOODFILL_MASK:
             self.OnFillHolesManually()
 
@@ -642,6 +657,10 @@ class MenuBar(wx.MenuBar):
                              const.ID_FILL_HOLE_AUTO,
                              const.ID_REMOVE_MASK_PART,
                              const.ID_SELECT_MASK_PART,
+                             const.ID_THRESHOLD_SEGMENTATION,
+                             const.ID_MANUAL_SEGMENTATION,
+                             const.ID_WATERSHED_SEGMENTATION,
+                             const.ID_THRESHOLD_SEGMENTATION,
                              const.ID_FLOODFILL_SEGMENTATION,]
         self.__init_items()
         self.__bind_events()
@@ -781,6 +800,9 @@ class MenuBar(wx.MenuBar):
 
         # Segmentation Menu
         segmentation_menu = wx.Menu()
+        self.threshold_segmentation = segmentation_menu.Append(const.ID_THRESHOLD_SEGMENTATION, _(u"Threshold"))
+        self.manual_segmentation = segmentation_menu.Append(const.ID_MANUAL_SEGMENTATION, _(u"Manual segmentation"))
+        self.watershed_segmentation = segmentation_menu.Append(const.ID_WATERSHED_SEGMENTATION, _(u"Watershed"))
         self.ffill_segmentation = segmentation_menu.Append(const.ID_FLOODFILL_SEGMENTATION, _(u"Region growing"))
         self.ffill_segmentation.Enable(False)
 
diff --git a/invesalius/gui/task_slice.py b/invesalius/gui/task_slice.py
index 03d5bac..fd2706d 100644
--- a/invesalius/gui/task_slice.py
+++ b/invesalius/gui/task_slice.py
@@ -342,6 +342,7 @@ class InnerFoldPanel(wx.Panel):
         Publisher.subscribe(self.OnRetrieveStyle, 'Retrieve task slice style')
         Publisher.subscribe(self.OnDisableStyle, 'Disable task slice style')
         Publisher.subscribe(self.OnCloseProject, 'Close project data')
+        Publisher.subscribe(self.OnColapsePanel, 'Show panel')
 
     def OnFoldPressCaption(self, evt):
         id = evt.GetTag().GetId()
@@ -388,6 +389,19 @@ class InnerFoldPanel(wx.Panel):
     def OnCloseProject(self, pubsub_evt):
         self.fold_panel.Expand(self.fold_panel.GetFoldPanel(0))
 
+    def OnColapsePanel(self, pubsub_evt):
+        panel_seg_id = {
+            const.ID_THRESHOLD_SEGMENTATION: 0,
+            const.ID_MANUAL_SEGMENTATION: 1,
+            const.ID_WATERSHED_SEGMENTATION: 2
+        }
+
+        try:
+            _id = panel_seg_id[pubsub_evt.data]
+            self.fold_panel.Expand(self.fold_panel.GetFoldPanel(_id))
+        except KeyError:
+            pass
+
     def GetMaskSelected(self):
         x= self.mask_prop_panel.GetMaskSelected()
         return self.mask_prop_panel.GetMaskSelected()
diff --git a/invesalius/style.py b/invesalius/style.py
index 29d3369..2319a27 100644
--- a/invesalius/style.py
+++ b/invesalius/style.py
@@ -78,10 +78,10 @@ class StyleStateManager(object):
                     const.STATE_DEFAULT
 
     def AddState(self, state):
-        
+
         level = const.STYLE_LEVEL[state]
         max_level = max(self.stack.keys())
-                
+
         # Insert new state into stack
         self.stack[level] = state
 
@@ -93,7 +93,7 @@ class StyleStateManager(object):
         level = const.STYLE_LEVEL[state]
         if level in self.stack.keys():
             max_level = max(self.stack.keys())
-        
+
             # Remove item from stack
             self.stack.pop(level)
 
@@ -104,9 +104,12 @@ class StyleStateManager(object):
             # level in stack has been removed
             if level == max_level:
                 new_state = self.stack[new_max_level]
-        
+
             return self.stack[new_max_level]
-        
+
         max_level = max(self.stack.keys())
         return self.stack[max_level]
-        
+
+    def Reset(self):
+        self.stack[const.STYLE_LEVEL[const.STATE_DEFAULT]] = \
+            const.STATE_DEFAULT
--
libgit2 0.21.2