diff --git a/src/barchart/barchartmodel.cpp b/src/barchart/barchartmodel.cpp
index a252543..89a6dfe 100644
--- a/src/barchart/barchartmodel.cpp
+++ b/src/barchart/barchartmodel.cpp
@@ -29,6 +29,16 @@ void BarChartModel::removeBarSet(QBarSet *set)
     }
 }
 
+void BarChartModel::insertBarSet(int i, QBarSet *set)
+{
+    mDataModel.insert(i, set);
+}
+
+void BarChartModel::insertCategory(int i, QString category)
+{
+    mCategory.insert(i, category);
+}
+
 QBarSet* BarChartModel::setAt(int index)
 {
     return mDataModel.at(index);
diff --git a/src/barchart/barchartmodel_p.h b/src/barchart/barchartmodel_p.h
index 7659d95..bdef70f 100644
--- a/src/barchart/barchartmodel_p.h
+++ b/src/barchart/barchartmodel_p.h
@@ -22,6 +22,8 @@ public:
     QStringList category();
     void addBarSet(QBarSet *set);
     void removeBarSet(QBarSet *set);
+    void insertBarSet(int i, QBarSet *set);
+    void insertCategory(int i, QString category);
     QBarSet *setAt(int index);
     QList<QBarSet*> barSets();
 
diff --git a/src/barchart/barpresenter.cpp b/src/barchart/barpresenter.cpp
index 340b4ae..ef59061 100644
--- a/src/barchart/barpresenter.cpp
+++ b/src/barchart/barpresenter.cpp
@@ -10,6 +10,7 @@ BarPresenter::BarPresenter(QBarSeries *series, QChart *parent) :
     BarPresenterBase(series, parent)
 {    
     connect(series, SIGNAL(updatedBars()), this, SLOT(layoutChanged()));
+    connect(series, SIGNAL(restructuredBar(int)), this, SLOT(handleModelChanged(int)));
 }
 
 void BarPresenter::layoutChanged()
diff --git a/src/barchart/qbarseries.cpp b/src/barchart/qbarseries.cpp
index b6460f8..79d8fea 100644
--- a/src/barchart/qbarseries.cpp
+++ b/src/barchart/qbarseries.cpp
@@ -69,15 +69,26 @@ void QBarSeries::removeBarSet(QBarSet *set)
     mModel->removeBarSet(set);
 }
 
+void QBarSeries::insertBarSet(int i, QBarSet *set)
+{
+    mModel->insertBarSet(i, set);
+    //    emit barsetChanged();
+}
+
+void QBarSeries::insertCategory(int i, QString category)
+{
+    mModel->insertCategory(i, category);
+}
+
 /*!
     Returns number of sets in series.
 */
 int QBarSeries::barsetCount()
 {
-//    if(m_model)
-//        return m_mapBarTop - m_mapBarBottom;
-//    else
-        return mModel->barsetCount();
+    //    if(m_model)
+    //        return m_mapBarTop - m_mapBarBottom;
+    //    else
+    return mModel->barsetCount();
 }
 
 /*!
@@ -299,21 +310,37 @@ void QBarSeries::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight)
     {
         if (topLeft.column() >= m_mapBarBottom && topLeft.column() <= m_mapBarTop)
             barsetAt(topLeft.column() - m_mapBarBottom)->setValue(topLeft.row(), m_model->data(topLeft, Qt::DisplayRole).toDouble());
-//        else if (topLeft.column() == m_mapCategories)
-//            slices().at(topLeft.row())->setLabel(m_model->data(topLeft, Qt::DisplayRole).toString());
+        //        else if (topLeft.column() == m_mapCategories)
+        //            slices().at(topLeft.row())->setLabel(m_model->data(topLeft, Qt::DisplayRole).toString());
     }
     else
     {
         if (topLeft.row() >= m_mapBarBottom && topLeft.row() <= m_mapBarTop)
             barsetAt(topLeft.row() - m_mapBarBottom)->setValue(topLeft.column(), m_model->data(topLeft, Qt::DisplayRole).toDouble());
-//        else if (topLeft.row() == m_mapCategories)
-//            slices().at(topLeft.column())->setLabel(m_model->data(topLeft, Qt::DisplayRole).toString());
+        //        else if (topLeft.row() == m_mapCategories)
+        //            slices().at(topLeft.column())->setLabel(m_model->data(topLeft, Qt::DisplayRole).toString());
     }
 }
 
-void QBarSeries::modelDataAdded(QModelIndex /*parent*/, int /*start*/, int /*end*/)
+void QBarSeries::modelDataAdded(QModelIndex /*parent*/, int start, int /*end*/)
 {
-    //
+    if (m_mapOrientation == Qt::Vertical)
+    {
+        insertCategory(start, QString("Row: %1").arg(start + 1));
+        for (int i = 0; i <= m_mapBarTop - m_mapBarBottom; i++)
+        {
+            barsetAt(i)->insertValue(start, m_model->data(m_model->index(start, i), Qt::DisplayRole).toDouble());
+        }
+    }
+    else
+    {
+        insertCategory(start, QString("Column: %1").arg(start + 1));
+        for (int i = 0; i <= m_mapBarTop - m_mapBarBottom; i++)
+        {
+            barsetAt(i)->insertValue(start, m_model->data(m_model->index(i, start), Qt::DisplayRole).toDouble());
+        }
+    }
+    emit restructuredBar(1);
 }
 
 void QBarSeries::modelDataRemoved(QModelIndex /*parent*/, int /*start*/, int /*end*/)
diff --git a/src/barchart/qbarseries.h b/src/barchart/qbarseries.h
index f4cdebd..9a0e33c 100644
--- a/src/barchart/qbarseries.h
+++ b/src/barchart/qbarseries.h
@@ -21,6 +21,8 @@ public:
 
     void addBarSet(QBarSet *set);               // Takes ownership of set
     void removeBarSet(QBarSet *set);            // Releases ownership, doesn't delete set
+    void insertBarSet(int i, QBarSet *set);
+    void insertCategory(int i, QString category);
     int barsetCount();
     int categoryCount();
     QList<QBarSet*> barSets();
@@ -51,6 +53,7 @@ signals:
 
     //
     void updatedBars();
+    void restructuredBar(int);
 
     // TODO: internal signals, these to private implementation.
     // TODO: TO PIMPL --->
diff --git a/src/barchart/qbarset.cpp b/src/barchart/qbarset.cpp
index d98de32..3c579f3 100644
--- a/src/barchart/qbarset.cpp
+++ b/src/barchart/qbarset.cpp
@@ -86,6 +86,11 @@ QBarSet& QBarSet::operator << (const qreal &value)
     return *this;
 }
 
+void QBarSet::insertValue(int i, qreal value)
+{
+    mValues.insert(i, value);
+}
+
 /*!
     Returns count of values in set.
 */
diff --git a/src/barchart/qbarset.h b/src/barchart/qbarset.h
index 5c1ef93..ce0af59 100644
--- a/src/barchart/qbarset.h
+++ b/src/barchart/qbarset.h
@@ -16,6 +16,7 @@ public:
     void setName(QString name);
     QString name();
     QBarSet& operator << (const qreal &value);  // appends new value to set
+    void insertValue(int i, qreal value);
 
     // TODO: remove indices eventually. Use as internal?
     int count();                                // count of values in set