diff --git a/limereport/items/lrtextitem.cpp b/limereport/items/lrtextitem.cpp
index 4677892..b293495 100644
--- a/limereport/items/lrtextitem.cpp
+++ b/limereport/items/lrtextitem.cpp
@@ -77,10 +77,6 @@ TextItem::TextItem(QObject *owner, QGraphicsItem *parent)
 
 TextItem::~TextItem(){}
 
-int TextItem::fakeMarginSize() const{
-    return marginSize()+5;
-}
-
 void TextItem::preparePopUpMenu(QMenu &menu)
 {
     QAction* editAction = menu.addAction(QIcon(":/report/images/edit_pecil2.png"),tr("Edit"));
@@ -180,7 +176,7 @@ void TextItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* style, Q
     qreal hOffset = 0, vOffset = 0;
     switch (m_angle){
         case Angle0:
-            hOffset = fakeMarginSize();
+            hOffset = marginSize();
             if ((tmpSize.height() > 0) && (m_alignment & Qt::AlignVCenter)){
                 vOffset = tmpSize.height() / 2;
             }
@@ -189,8 +185,8 @@ void TextItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* style, Q
             painter->translate(hOffset,vOffset);
         break;
         case Angle90:
-            hOffset = width() - fakeMarginSize();
-            vOffset = fakeMarginSize();
+            hOffset = width() - marginSize();
+            vOffset = marginSize();
             if (m_alignment & Qt::AlignVCenter){
                 hOffset = (width() - text->size().height()) / 2 + text->size().height();
             }
@@ -202,8 +198,8 @@ void TextItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* style, Q
             painter->rotate(90);
         break;
         case Angle180:
-            hOffset = width() - fakeMarginSize();
-            vOffset = height() - fakeMarginSize();
+            hOffset = width() - marginSize();
+            vOffset = height() - marginSize();
             if ((tmpSize.width()>0) && (m_alignment & Qt::AlignVCenter)){
                 vOffset = tmpSize.height() / 2+ text->size().height();
             }
@@ -214,8 +210,8 @@ void TextItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* style, Q
             painter->rotate(180);
         break;
         case Angle270:
-            hOffset = fakeMarginSize();
-            vOffset = height()-fakeMarginSize();
+            hOffset = marginSize();
+            vOffset = height()-marginSize();
             if (m_alignment & Qt::AlignVCenter){
                 hOffset = (width() - text->size().height())/2;
             }
@@ -321,7 +317,7 @@ void TextItem::updateItemSize(DataSourceManager* dataManager, RenderPass pass, i
         initTextSizes();
 
     if (m_textSize.width()>width() && ((m_autoWidth==MaxWordLength)||(m_autoWidth==MaxStringLength))){
-        setWidth(m_textSize.width() + fakeMarginSize()*2);
+        setWidth(m_textSize.width() + marginSize()*2);
     }
 
     if (m_textSize.height()>height()) {
@@ -380,9 +376,9 @@ QString TextItem::replaceReturns(QString text) const
 void TextItem::setTextFont(TextPtr text, const QFont& value) const {
     text->setDefaultFont(value);
     if ((m_angle==Angle0)||(m_angle==Angle180)){
-        text->setTextWidth(rect().width()-fakeMarginSize()*2);
+        text->setTextWidth(rect().width()-marginSize()*2);
     } else {
-        text->setTextWidth(rect().height()-fakeMarginSize()*2);
+        text->setTextWidth(rect().height()-marginSize()*2);
     }
 }
 
@@ -394,7 +390,7 @@ void TextItem::adaptFontSize(TextPtr text) const{
         if (_font.pixelSize()>2)
             _font.setPixelSize(_font.pixelSize()-1);
         else break;
-    } while(text->size().height()>this->height() || text->size().width()>(this->width()) - fakeMarginSize() * 2);
+    } while(text->size().height()>this->height() || text->size().width()>(this->width()) - marginSize() * 2);
 }
 
 int TextItem::underlineLineSize() const
diff --git a/limereport/items/lrtextitem.h b/limereport/items/lrtextitem.h
index 0d63415..a64142e 100644
--- a/limereport/items/lrtextitem.h
+++ b/limereport/items/lrtextitem.h
@@ -192,7 +192,6 @@ protected:
     bool isNeedExpandContent() const;
     QString replaceBR(QString text) const;
     QString replaceReturns(QString text) const;
-    int fakeMarginSize() const;
     QString getTextPart(int height, int skipHeight);
     void restoreLinksEvent();
     void preparePopUpMenu(QMenu &menu);
diff --git a/limereport/lrdatadesignintf.cpp b/limereport/lrdatadesignintf.cpp
index 0315c27..f7b3aa2 100644
--- a/limereport/lrdatadesignintf.cpp
+++ b/limereport/lrdatadesignintf.cpp
@@ -272,6 +272,24 @@ QVariant ModelToDataSource::dataByRowIndex(const QString &columnName, int rowInd
     return QVariant();
 }
 
+QVariant ModelToDataSource::dataByRowIndex(const QString &columnName, int rowIndex, int roleName)
+{
+    if(m_model->rowCount() > rowIndex)
+        return m_model->data(m_model->index(rowIndex, columnIndexByName(columnName)));
+    return QVariant();
+}
+
+QVariant ModelToDataSource::dataByRowIndex(const QString &columnName, int rowIndex, const QString &roleName)
+{
+    if(m_model->rowCount() > rowIndex) {
+        int roleCode{roleName.isEmpty() ? Qt::DisplayRole
+                                        : m_model->roleNames().key(roleName.toUtf8(), Qt::DisplayRole)};
+        return m_model->data(m_model->index(rowIndex, columnIndexByName(columnName)), roleCode);
+    }
+
+    return QVariant();
+}
+
 QVariant ModelToDataSource::dataByKeyField(const QString& columnName, const QString& keyColumnName, QVariant keyData)
 {
    for( int i=0; i < m_model->rowCount(); ++i ){
@@ -310,6 +328,13 @@ int ModelToDataSource::columnIndexByName(QString name)
     return -1;
 }
 
+QVariant ModelToDataSource::headerData(const QString &columnName, const QString &roleName)
+{
+    int roleCode{roleName.isEmpty() ? Qt::DisplayRole
+                                    : m_model->roleNames().key(roleName.toUtf8(), Qt::DisplayRole)};
+    return m_model->headerData(columnIndexByName(columnName), Qt::Horizontal, roleCode);
+}
+
 QString ModelToDataSource::lastError()
 {
     return m_lastError;
@@ -722,6 +747,18 @@ QVariant CallbackDatasource::dataByRowIndex(const QString &columnName, int rowIn
     return result;
 }
 
+QVariant CallbackDatasource::dataByRowIndex(const QString &columnName, int rowIndex, int roleName)
+{
+    Q_UNUSED(roleName)
+    return dataByRowIndex(columnName, rowIndex);
+}
+
+QVariant CallbackDatasource::dataByRowIndex(const QString &columnName, int rowIndex, const QString &roleName)
+{
+    Q_UNUSED(roleName)
+    return dataByRowIndex(columnName, rowIndex);
+}
+
 QVariant CallbackDatasource::dataByKeyField(const QString& columnName, const QString& keyColumnName, QVariant keyData)
 {
     int backupCurrentRow = m_currentRow;
@@ -816,6 +853,12 @@ int CallbackDatasource::columnIndexByName(QString name)
     return -1;
 }
 
+QVariant CallbackDatasource::headerData(const QString &columnName, const QString &roleName)
+{
+    Q_UNUSED(roleName)
+    return columnName; // STUB
+}
+
 bool CallbackDatasource::checkNextRecord(int recordNum){
     if (bof()) checkIfEmpty();
     if (m_rowCount > 0) {
diff --git a/limereport/lrdatadesignintf.h b/limereport/lrdatadesignintf.h
index f76de85..f070f7a 100644
--- a/limereport/lrdatadesignintf.h
+++ b/limereport/lrdatadesignintf.h
@@ -388,10 +388,13 @@ public:
     bool bof();
     QVariant data(const QString& columnName);
     QVariant dataByRowIndex(const QString &columnName, int rowIndex);
+    QVariant dataByRowIndex(const QString &columnName, int rowIndex, int roleName);
+    QVariant dataByRowIndex(const QString &columnName, int rowIndex, const QString &roleName);
     QVariant dataByKeyField(const QString& columnName, const QString& keyColumnName, QVariant keyData);
     int columnCount();
     QString columnNameByIndex(int columnIndex);
     int columnIndexByName(QString name);
+    QVariant headerData(const QString &columnName, const QString &roleName);
     QString lastError();
     virtual QAbstractItemModel* model();
     int currentRow();
@@ -421,6 +424,8 @@ public:
     bool eof(){return m_eof;}
     QVariant data(const QString &columnName);
     QVariant dataByRowIndex(const QString& columnName, int rowIndex);
+    QVariant dataByRowIndex(const QString &columnName, int rowIndex, int roleName);
+    QVariant dataByRowIndex(const QString &columnName, int rowIndex, const QString &roleName);
     QVariant dataByKeyField(const QString& columnName, const QString& keyColumnName, QVariant keyData);
     int columnCount();
     QString columnNameByIndex(int columnIndex);
@@ -428,6 +433,7 @@ public:
     bool isInvalid() const{ return false;}
     QString lastError(){ return "";}
     QAbstractItemModel *model(){return 0;}
+    QVariant headerData(const QString &columnName, const QString &roleName);
 private:
     bool checkNextRecord(int recordNum);
     bool checkIfEmpty();
@@ -441,6 +447,7 @@ private:
     QHash<QString, QVariant> m_valuesCache;
     bool m_getDataFromCache;
     int m_lastKeyRow;
+
 };
 
 class CallbackDatasourceHolder :public QObject, public IDataSourceHolder{
diff --git a/limereport/lrdatasourceintf.h b/limereport/lrdatasourceintf.h
index 26f7a65..481787c 100644
--- a/limereport/lrdatasourceintf.h
+++ b/limereport/lrdatasourceintf.h
@@ -18,9 +18,12 @@ public:
     virtual bool eof() = 0;
     virtual QVariant data(const QString& columnName) = 0;
     virtual QVariant dataByRowIndex(const QString& columnName, int rowIndex) = 0;
+    virtual QVariant dataByRowIndex(const QString &columnName, int rowIndex, int roleName) = 0;
+    virtual QVariant dataByRowIndex(const QString &columnName, int rowIndex, const QString &roleName) = 0;
     virtual QVariant dataByKeyField(const QString& columnName, const QString& keyColumnName, QVariant keyData) = 0;
     virtual int columnCount() = 0;
     virtual QString columnNameByIndex(int columnIndex) = 0;
+    virtual QVariant headerData(const QString &columnName, const QString &roleName) = 0;
     virtual int columnIndexByName(QString name) = 0;
     virtual bool isInvalid() const = 0;
     virtual QString lastError() = 0;
diff --git a/limereport/lrdatasourcemanager.cpp b/limereport/lrdatasourcemanager.cpp
index 91f1189..a532c1e 100644
--- a/limereport/lrdatasourcemanager.cpp
+++ b/limereport/lrdatasourcemanager.cpp
@@ -1689,6 +1689,28 @@ QVariant DataSourceManager::fieldDataByRowIndex(const QString &fieldName, int ro
     return QVariant();
 }
 
+QVariant DataSourceManager::fieldDataByRowIndex(const QString &fieldName, int rowIndex, int role)
+{
+    if(containsField(fieldName)) {
+        IDataSource *ds = dataSource(extractDataSource(fieldName));
+        if(ds) {
+            return ds->dataByRowIndex(extractFieldName(fieldName), rowIndex, role);
+        }
+    }
+    return QVariant();
+}
+
+QVariant DataSourceManager::fieldDataByRowIndex(const QString &fieldName, int rowIndex, const QString &roleName)
+{
+    if(containsField(fieldName)) {
+        IDataSource *ds = dataSource(extractDataSource(fieldName));
+        if(ds) {
+            return ds->dataByRowIndex(extractFieldName(fieldName), rowIndex, roleName);
+        }
+    }
+    return QVariant();
+}
+
 QVariant DataSourceManager::fieldDataByKey(const QString& datasourceName, const QString& valueFieldName, const QString& keyFieldName, QVariant keyValue)
 {
     IDataSource* ds = dataSource(datasourceName);
@@ -1698,6 +1720,36 @@ QVariant DataSourceManager::fieldDataByKey(const QString& datasourceName, const
     return QVariant();
 }
 
+QVariant DataSourceManager::headerData(const QString &fieldName, const QString &roleName)
+{
+    if(containsField(fieldName)) {
+        IDataSource *ds = dataSource(extractDataSource(fieldName));
+        if(ds) {
+            return ds->headerData(extractFieldName(fieldName), roleName);
+        }
+    }
+    return QVariant();
+}
+
+QString DataSourceManager::columnName(const QString &datasourceName, int index)
+{
+    IDataSource *ds = dataSource(datasourceName);
+    if(ds && !ds->isInvalid() && ds->columnCount() > index) {
+        return ds->columnNameByIndex(index);
+    }
+    return QString("unknown");
+}
+
+int DataSourceManager::columnCount(const QString &datasourceName)
+{
+    IDataSource *ds = dataSource(datasourceName);
+    if(ds && !ds->isInvalid()) {
+        return ds->columnCount();
+    }
+
+    return -1;
+}
+
 void DataSourceManager::reopenDatasource(const QString& datasourceName)
 {
     QueryHolder* qh = dynamic_cast<QueryHolder*>(dataSourceHolder(datasourceName));
diff --git a/limereport/lrdatasourcemanager.h b/limereport/lrdatasourcemanager.h
index f870b77..7e94be9 100644
--- a/limereport/lrdatasourcemanager.h
+++ b/limereport/lrdatasourcemanager.h
@@ -173,12 +173,17 @@ public:
     bool        containsField(const QString& fieldName);
     QVariant    fieldData(const QString& fieldName);
     QVariant    fieldDataByRowIndex(const QString& fieldName, int rowIndex);
+    QVariant    fieldDataByRowIndex(const QString &fieldName, int rowIndex, int role);
+    QVariant    fieldDataByRowIndex(const QString &fieldName, int rowIndex, const QString &roleName);
     QVariant    fieldDataByKey(
             const QString& datasourceName,
             const QString& valueFieldName,
             const QString& keyFieldName,
             QVariant keyValue
     );
+    QVariant headerData(const QString &fieldName, const QString &roleName);
+    QString columnName(const QString &datasourceName, int index);
+    int columnCount(const QString &datasourceName);
     void    reopenDatasource(const QString& datasourceName);
 
     QString extractDataSource(const QString& fieldName);
diff --git a/limereport/lrscriptenginemanager.cpp b/limereport/lrscriptenginemanager.cpp
index 31220d3..c940f8b 100644
--- a/limereport/lrscriptenginemanager.cpp
+++ b/limereport/lrscriptenginemanager.cpp
@@ -1073,6 +1073,79 @@ bool ScriptEngineManager::createReopenDatasourceFunction()
     return addFunction(fd);
 }
 
+bool ScriptEngineManager::createGetFieldByRowIndexEx()
+{
+    JSFunctionDesc fd;
+    fd.setManager(m_functionManager);
+    fd.setManagerName(LimeReport::Const::FUNCTION_MANAGER_NAME);
+    fd.setCategory(tr("GENERAL"));
+    fd.setName("getFieldByRowIndexEx");
+    fd.setDescription("getFieldByRowIndexEx(\"" + tr("FieldName") + "\", \"" + tr("RowIndex")
+                    + "\", \"" + tr("RoleIndex") + "\")");
+    fd.setScriptWrapper(QString("function getFieldByRowIndexEx(fieldName, rowIndex, role){"
+                              "return %1.getFieldByRowIndexEx(fieldName, rowIndex, role);}")
+                          .arg(LimeReport::Const::FUNCTION_MANAGER_NAME));
+    return addFunction(fd);
+}
+
+bool ScriptEngineManager::createGetFieldByRowIndexEx2()
+{
+    JSFunctionDesc fd;
+    fd.setManager(m_functionManager);
+    fd.setManagerName(LimeReport::Const::FUNCTION_MANAGER_NAME);
+    fd.setCategory(tr("GENERAL"));
+    fd.setName("getFieldByRowIndexEx2");
+    fd.setDescription("getFieldByRowIndexEx2(\"" + tr("FieldName") + "\", \"" + tr("RowIndex")
+                      + "\", \"" + tr("RoleName") + "\")");
+    fd.setScriptWrapper(QString("function getFieldByRowIndexEx2(fieldName, rowIndex, role){"
+                                "return %1.getFieldByRowIndexEx2(fieldName, rowIndex, role);}")
+                            .arg(LimeReport::Const::FUNCTION_MANAGER_NAME));
+    return addFunction(fd);
+}
+
+bool ScriptEngineManager::createHeaderData()
+{
+    JSFunctionDesc fd;
+    fd.setManager(m_functionManager);
+    fd.setManagerName(LimeReport::Const::FUNCTION_MANAGER_NAME);
+    fd.setCategory(tr("GENERAL"));
+    fd.setName("getHeaderData");
+    fd.setDescription("getHeaderData(\"" + tr("FieldName") + "\", \"" + tr("RoleName") + "\")");
+    fd.setScriptWrapper(QString("function getHeaderData(fieldName, role){"
+                                "return %1.getHeaderData(fieldName, role);}")
+                            .arg(LimeReport::Const::FUNCTION_MANAGER_NAME));
+    return addFunction(fd);
+}
+
+bool ScriptEngineManager::createHeaderColumnNameByIndex()
+{
+    JSFunctionDesc fd;
+    fd.setManager(m_functionManager);
+    fd.setManagerName(LimeReport::Const::FUNCTION_MANAGER_NAME);
+    fd.setCategory(tr("GENERAL"));
+    fd.setName("getHeaderColumnNameByIndex");
+    fd.setDescription("getHeaderColumnNameByIndex(\"" + tr("datasourceName") + "\", \""
+                      + tr("columnIndex") + "\")");
+    fd.setScriptWrapper(QString("function getHeaderColumnNameByIndex(datasourceName, columnIndex){"
+                                "return %1.getHeaderColumnNameByIndex(datasourceName, columnIndex);}")
+                            .arg(LimeReport::Const::FUNCTION_MANAGER_NAME));
+    return addFunction(fd);
+}
+
+bool ScriptEngineManager::createColumnCount()
+{
+    JSFunctionDesc fd;
+    fd.setManager(m_functionManager);
+    fd.setManagerName(LimeReport::Const::FUNCTION_MANAGER_NAME);
+    fd.setCategory(tr("GENERAL"));
+    fd.setName("getColumnCount");
+    fd.setDescription("getColumnCount(\"" + tr("datasourceName") + "\")");
+    fd.setScriptWrapper(QString("function getColumnCount(datasourceName){"
+                                "return %1.getColumnCount(datasourceName);}")
+                            .arg(LimeReport::Const::FUNCTION_MANAGER_NAME));
+    return addFunction(fd);
+}
+
 ScriptEngineManager::ScriptEngineManager()
     :m_model(0), m_context(0), m_dataManager(0)
 {
@@ -1114,6 +1187,11 @@ ScriptEngineManager::ScriptEngineManager()
     createAddTableOfContentsItemFunction();
     createClearTableOfContentsFunction();
     createReopenDatasourceFunction();
+    createGetFieldByRowIndexEx();
+    createGetFieldByRowIndexEx2();
+    createHeaderData();
+    createHeaderColumnNameByIndex();
+    createColumnCount();
 
     m_model = new ScriptEngineModel(this);
 }
@@ -1866,6 +1944,36 @@ QFont ScriptFunctionsManager::font(const QString &family, int pointSize, bool it
     return result;
 }
 
+QVariant ScriptFunctionsManager::getFieldByRowIndexEx(const QString &fieldName, int rowIndex, const int role)
+{
+    DataSourceManager *dm = scriptEngineManager()->dataManager();
+    return dm->fieldDataByRowIndex(fieldName, rowIndex, role);
+}
+
+QVariant ScriptFunctionsManager::getFieldByRowIndexEx2(const QString &fieldName, int rowIndex, const QString &roleName)
+{
+    DataSourceManager *dm = scriptEngineManager()->dataManager();
+    return dm->fieldDataByRowIndex(fieldName, rowIndex, roleName);
+}
+
+QVariant ScriptFunctionsManager::getHeaderData(const QString &fieldName, const QString &roleName)
+{
+    DataSourceManager *dm = scriptEngineManager()->dataManager();
+    return dm->headerData(fieldName, roleName);
+}
+
+QVariant ScriptFunctionsManager::getHeaderColumnNameByIndex(const QString &datasourceName, const int columnIndex)
+{
+    DataSourceManager *dm = scriptEngineManager()->dataManager();
+    return dm->columnName(datasourceName, columnIndex);
+}
+
+int ScriptFunctionsManager::getColumnCount(const QString &datasourceName)
+{
+    DataSourceManager *dm = scriptEngineManager()->dataManager();
+    return dm->columnCount(datasourceName);
+}
+
 #ifdef USE_QJSENGINE
 
 void ScriptFunctionsManager::addItemsToComboBox(QJSValue object, const QStringList &values)
diff --git a/limereport/lrscriptenginemanager.h b/limereport/lrscriptenginemanager.h
index d027a1a..1763190 100644
--- a/limereport/lrscriptenginemanager.h
+++ b/limereport/lrscriptenginemanager.h
@@ -378,6 +378,43 @@ public:
     Q_INVOKABLE void     addTableOfContentsItem(const QString& uniqKey, const QString& content, int indent = 0);
     Q_INVOKABLE void     clearTableOfContents();
     Q_INVOKABLE QFont    font(const QString& family, int pointSize = -1, bool bold = false, bool italic = false, bool underLine = false);
+    /*!
+     * \brief getFieldByRowIndexEx Выдает для поля значение заданной роли
+     * \param fieldName имя источника данных + имя поля
+     * \param rowIndex индекс строки
+     * \param role код роли
+     * \return
+    */
+    Q_INVOKABLE QVariant getFieldByRowIndexEx(const QString &fieldName, int rowIndex, const int role);
+    /*!
+     * \brief getFieldByRowIndexEx2 Выдает для поля значение заданной роли
+     * \param fieldName имя источника данных + имя поля
+     * \param rowIndex индекс строки
+     * \param roleName имя роли из roleNames()
+     * \return
+    */
+    Q_INVOKABLE QVariant getFieldByRowIndexEx2(const QString &fieldName, int rowIndex, const QString &roleName);
+    /*!
+     * \brief getHeaderData Выдает для поля заголовка значение заданной роли
+     * \param fieldName имя источника данных + имя поля
+     * \param role имя роли из roleNames()
+     * \return
+    */
+    Q_INVOKABLE QVariant getHeaderData(const QString &fieldName, const QString &roleName);
+    /*!
+     * \brief getHeaderColumnNameByIndex Выдает имя колонки по ее индексу (имя используемое LR)
+     * \param datasourceName имя источника данных
+     * \param columnIndex индекс колонки
+     * \return
+    */
+    Q_INVOKABLE QVariant getHeaderColumnNameByIndex(const QString &datasourceName, const int columnIndex);
+    /*!
+     * \brief getColumnCount Выдает число столбцов в источнике данных
+     * \param datasourceName имя источника данных
+     * \return возможно -1 при ошибке
+    */
+    Q_INVOKABLE int getColumnCount(const QString &datasourceName);
+
 #ifdef USE_QJSENGINE
     Q_INVOKABLE void addItemsToComboBox(QJSValue object, const QStringList& values);
     Q_INVOKABLE void addItemToComboBox(QJSValue object, const QString& value);
@@ -506,6 +543,12 @@ private:
     bool createAddTableOfContentsItemFunction();
     bool createClearTableOfContentsFunction();
     bool createReopenDatasourceFunction();
+    bool createGetFieldByRowIndexEx();
+    bool createGetFieldByRowIndexEx2();
+    bool createHeaderData();
+    bool createHeaderColumnNameByIndex();
+    bool createColumnCount();
+
 private:
     ScriptEngineManager();
     ScriptEngineType*  m_scriptEngine;
diff --git a/limereport/scripteditor/lrcompletermodel.cpp b/limereport/scripteditor/lrcompletermodel.cpp
index 29c7116..70299f6 100644
--- a/limereport/scripteditor/lrcompletermodel.cpp
+++ b/limereport/scripteditor/lrcompletermodel.cpp
@@ -22,16 +22,17 @@ QModelIndex CompleterModel::index(int row, int column, const QModelIndex &parent
     return createIndex(row, column, parentItem->child(row));
 }
 
-QModelIndex CompleterModel::parent(const QModelIndex &child) const
-{
-    if (child.isValid()){
-        CompleterItem *childItem = static_cast<CompleterItem*>(child.internalPointer());
-        CompleterItem *parentItem = childItem->parent();
-        if (parentItem != &m_root) {
-            return indexFromItem(parentItem);
-        }
+QModelIndex CompleterModel::parent(const QModelIndex &child) const {
+  if(child.isValid()) {
+    if(CompleterItem *childItem = static_cast<CompleterItem *>(child.internalPointer());
+       childItem) {
+      CompleterItem *parentItem = childItem->parent();
+      if(parentItem != &m_root) {
+        return indexFromItem(parentItem);
+      }
     }
-    return QModelIndex();
+  }
+  return QModelIndex();
 }
 
 int CompleterModel::rowCount(const QModelIndex &parent) const
diff --git a/limereport/scripteditor/lrcompletermodel.h b/limereport/scripteditor/lrcompletermodel.h
index 862437a..8f218e8 100644
--- a/limereport/scripteditor/lrcompletermodel.h
+++ b/limereport/scripteditor/lrcompletermodel.h
@@ -12,7 +12,9 @@ public:
     CompleterItem(QString text, QIcon icon):m_parent(0), m_text(text), m_icon(icon), m_model(0){}
     ~CompleterItem();
     int rowCount() const {return m_children.count();}
-    CompleterItem* child(int row) const {return m_children.at(row).data();}
+    CompleterItem *child(int row) const {
+      return m_children.count() > row ? m_children.at(row).data() : nullptr;
+    }
     CompleterItem* parent() const {return m_parent;}
     int row() const{
         if (m_parent){
@@ -33,7 +35,7 @@ public:
     void appendRow(CompleterItem* child);
     void appendRows(const QList<CompleterItem *> &children);
 private:
-    CompleterItem* m_parent;
+    CompleterItem* m_parent{nullptr};
     QVector<QSharedPointer<CompleterItem> > m_children;
     QString m_text;
     QIcon m_icon;