diff --git a/apps/math_toolbox.cpp b/apps/math_toolbox.cpp
index b0e319531..c9e4ae3ec 100644
--- a/apps/math_toolbox.cpp
+++ b/apps/math_toolbox.cpp
@@ -8,10 +8,29 @@
  * and the text which would be edited by clicking on the row. When the node is a
  * subtree, the edited text is set at I18n::Message::Default. */
 
+const int pointedLayoutPathIntegral[] = {2, 0};
+const int pointedLayoutPathSum[] = {2};
 const ToolboxMessageTree calculChildren[4] = {
   ToolboxMessageTree(I18n::Message::DiffCommandWithArg, I18n::Message::DerivateNumber, I18n::Message::DiffCommandWithArg, nullptr, 0),
-  ToolboxMessageTree(I18n::Message::IntCommandWithArg, I18n::Message::Integral, I18n::Message::IntCommandWithArg, nullptr, 0, new IntegralLayout(new EmptyVisibleLayout(), new EmptyVisibleLayout, new HorizontalLayout(const_cast<Poincare::ExpressionLayout**>(Poincare::ExpressionLayout::ExpressionLayoutArray2(new EmptyVisibleLayout(), new StringLayout("dx",2))), 2, false), false)),
-  ToolboxMessageTree(I18n::Message::SumCommandWithArg, I18n::Message::Sum, I18n::Message::SumCommandWithArg),
+  ToolboxMessageTree(I18n::Message::IntCommandWithArg, I18n::Message::Integral, I18n::Message::IntCommandWithArg, nullptr, 0,
+      new IntegralLayout(
+        new EmptyVisibleLayout(),
+        new EmptyVisibleLayout(),
+        new HorizontalLayout(const_cast<Poincare::ExpressionLayout**>(Poincare::ExpressionLayout::ExpressionLayoutArray2(
+              new EmptyVisibleLayout(),
+              new StringLayout("dx",2))), 2, false), false),
+      const_cast<int *>(&pointedLayoutPathIntegral[0]),
+      2),
+  ToolboxMessageTree(I18n::Message::SumCommandWithArg, I18n::Message::Sum, I18n::Message::SumCommandWithArg, nullptr, 0,
+      new SumLayout(
+        new HorizontalLayout(const_cast<Poincare::ExpressionLayout**>(Poincare::ExpressionLayout::ExpressionLayoutArray2(
+              new StringLayout("n=",2),
+              new EmptyVisibleLayout())), 2, false),
+        new EmptyVisibleLayout(),
+        new EmptyVisibleLayout(),
+        false),
+      const_cast<int *>(&pointedLayoutPathSum[0]),
+      1),
   ToolboxMessageTree(I18n::Message::ProductCommandWithArg, I18n::Message::Product, I18n::Message::ProductCommandWithArg)};
 
 const ToolboxMessageTree complexChildren[5] = {
@@ -129,7 +148,11 @@ bool MathToolbox::selectLeaf(ToolboxMessageTree * selectedMessageTree) {
   // Deal with ExpressionEditor::Controller for now.
   m_selectableTableView.deselectTable();
   ExpressionLayout * newLayout = selectedMessageTree->layout()->clone();
-  expressionEditorControllerSender()->insertLayoutAtCursor(newLayout, newLayout->editableChild(2)->editableChild(0));
+  ExpressionLayout * pointedLayout = newLayout;
+  for (int i = 0; i < selectedMessageTree->pointedPathLength(); i++) {
+    pointedLayout = pointedLayout->editableChild(selectedMessageTree->pointedPath()[i]);
+  }
+  expressionEditorControllerSender()->insertLayoutAtCursor(newLayout, pointedLayout);
   app()->dismissModalViewController();
   return true;
 }
diff --git a/escher/include/escher/toolbox_message_tree.h b/escher/include/escher/toolbox_message_tree.h
index aebf25db4..253ce36ce 100644
--- a/escher/include/escher/toolbox_message_tree.h
+++ b/escher/include/escher/toolbox_message_tree.h
@@ -6,23 +6,29 @@
 
 class ToolboxMessageTree : public MessageTree {
 public:
-  constexpr ToolboxMessageTree(I18n::Message label = (I18n::Message)0, I18n::Message text = (I18n::Message)0, I18n::Message insertedText = (I18n::Message)0, const ToolboxMessageTree * children = nullptr, int numberOfChildren = 0, Poincare::ExpressionLayout * layout = nullptr) :
+  constexpr ToolboxMessageTree(I18n::Message label = (I18n::Message)0, I18n::Message text = (I18n::Message)0, I18n::Message insertedText = (I18n::Message)0, const ToolboxMessageTree * children = nullptr, int numberOfChildren = 0, Poincare::ExpressionLayout * layout = nullptr, int * pointedLayoutPath = nullptr, int pointedLayoutPathLength = 0) :
     MessageTree(label, numberOfChildren),
     m_children(children),
     m_text(text),
     m_insertedText(insertedText),
-    m_layout(layout)
+    m_layout(layout),
+    m_pointedLayoutPath(pointedLayoutPath),
+    m_pointedLayoutPathLength(pointedLayoutPathLength)
   {
   };
   const MessageTree * children(int index) const override;
   I18n::Message text() const;
   I18n::Message insertedText() const;
   Poincare::ExpressionLayout * layout() const { return m_layout; }
+  int * pointedPath() const { return m_pointedLayoutPath; }
+  int pointedPathLength() const { return m_pointedLayoutPathLength; }
 private:
   const ToolboxMessageTree * m_children;
   I18n::Message m_text;
   I18n::Message m_insertedText;
   Poincare::ExpressionLayout * m_layout;
+  int * m_pointedLayoutPath;
+  int m_pointedLayoutPathLength;
 };
 
 #endif