diff --git a/include/lrglobal.cpp b/include/lrglobal.cpp
index 5b2cdff..b4eb854 100644
--- a/include/lrglobal.cpp
+++ b/include/lrglobal.cpp
@@ -67,4 +67,13 @@ QString replaceHTMLSymbols(const QString &value)
     return result;
 }
 
+QVector<QString> normalizeCaptures(const QRegExp& reg){
+    QVector<QString> result;
+    foreach (QString cap, reg.capturedTexts()) {
+        if (!cap.isEmpty())
+            result.append(cap);
+    }
+    return result;
+}
+
 } //namespace LimeReport
diff --git a/include/lrglobal.h b/include/lrglobal.h
index 421f8d7..f59d0fb 100644
--- a/include/lrglobal.h
+++ b/include/lrglobal.h
@@ -90,7 +90,8 @@ namespace Const{
     //const int VALUE_INDEX = 2;
 
     //const QString GROUP_FUNCTION_PARAM_RX = "\\(\\s*(?:(?:((?:(?:\\\"?\\$D\\s*\\{\\s*)|(?:\\\"?\\$V\\s*\\{\\s*)|(?:\\\"?\\$S\\s*\\{\\s*)|(?:\\\"))((?:\\w+\\.?\\w+)|(?:\\w+))(?:(?:\\\")|(?:\\s*\\}\\\"?\\s*)))\\s*,)|(?:))\\s*\\\"(\\w+)\\\"\\s*\\)";
-    const QString GROUP_FUNCTION_PARAM_RX = "\\((?:(.+),|(?:))(?:\\\"(\\w+)\\\")\\)";
+    //const QString GROUP_FUNCTION_PARAM_RX = "\\((?:(.+),(.+))|(?:\\\"(\\w+)\\\")\\)";
+    const QString GROUP_FUNCTION_PARAM_RX = "\\(\\s*(?:(?:(?:(?:\\\")|(?:))(\\w+)(?:(?:\\\")|(?:)))|(?:(?:(?:\\\")|(?:))(\\s*\\$\\w\\s*\\{.+\\}\\s*)(?:(?:\\\")|(?:))\\s*,\\s*(?:(?:\\\")|(?:))(\\w+)(?:(?:\\\")|(?:))))\\)";
     const int DATASOURCE_INDEX = 3;//4;
     const int VALUE_INDEX = 2; //2;
     const int EXPRESSION_ARGUMENT_INDEX = 1;//3;
@@ -103,6 +104,7 @@ namespace Const{
     QString extractClassName(QString className);
     QString escapeSimbols(const QString& value);
     QString replaceHTMLSymbols(const QString &value);
+    QVector<QString> normalizeCaptures(const QRegExp &reg);
 
     enum ExpandType {EscapeSymbols, NoEscapeSymbols, ReplaceHTMLSymbols};
     enum RenderPass {FirstPass, SecondPass};
diff --git a/limereport/lrglobal.cpp b/limereport/lrglobal.cpp
index 5b2cdff..b4eb854 100644
--- a/limereport/lrglobal.cpp
+++ b/limereport/lrglobal.cpp
@@ -67,4 +67,13 @@ QString replaceHTMLSymbols(const QString &value)
     return result;
 }
 
+QVector<QString> normalizeCaptures(const QRegExp& reg){
+    QVector<QString> result;
+    foreach (QString cap, reg.capturedTexts()) {
+        if (!cap.isEmpty())
+            result.append(cap);
+    }
+    return result;
+}
+
 } //namespace LimeReport
diff --git a/limereport/lrglobal.h b/limereport/lrglobal.h
index 421f8d7..f59d0fb 100644
--- a/limereport/lrglobal.h
+++ b/limereport/lrglobal.h
@@ -90,7 +90,8 @@ namespace Const{
     //const int VALUE_INDEX = 2;
 
     //const QString GROUP_FUNCTION_PARAM_RX = "\\(\\s*(?:(?:((?:(?:\\\"?\\$D\\s*\\{\\s*)|(?:\\\"?\\$V\\s*\\{\\s*)|(?:\\\"?\\$S\\s*\\{\\s*)|(?:\\\"))((?:\\w+\\.?\\w+)|(?:\\w+))(?:(?:\\\")|(?:\\s*\\}\\\"?\\s*)))\\s*,)|(?:))\\s*\\\"(\\w+)\\\"\\s*\\)";
-    const QString GROUP_FUNCTION_PARAM_RX = "\\((?:(.+),|(?:))(?:\\\"(\\w+)\\\")\\)";
+    //const QString GROUP_FUNCTION_PARAM_RX = "\\((?:(.+),(.+))|(?:\\\"(\\w+)\\\")\\)";
+    const QString GROUP_FUNCTION_PARAM_RX = "\\(\\s*(?:(?:(?:(?:\\\")|(?:))(\\w+)(?:(?:\\\")|(?:)))|(?:(?:(?:\\\")|(?:))(\\s*\\$\\w\\s*\\{.+\\}\\s*)(?:(?:\\\")|(?:))\\s*,\\s*(?:(?:\\\")|(?:))(\\w+)(?:(?:\\\")|(?:))))\\)";
     const int DATASOURCE_INDEX = 3;//4;
     const int VALUE_INDEX = 2; //2;
     const int EXPRESSION_ARGUMENT_INDEX = 1;//3;
@@ -103,6 +104,7 @@ namespace Const{
     QString extractClassName(QString className);
     QString escapeSimbols(const QString& value);
     QString replaceHTMLSymbols(const QString &value);
+    QVector<QString> normalizeCaptures(const QRegExp &reg);
 
     enum ExpandType {EscapeSymbols, NoEscapeSymbols, ReplaceHTMLSymbols};
     enum RenderPass {FirstPass, SecondPass};
diff --git a/limereport/lrreportrender.cpp b/limereport/lrreportrender.cpp
index d439276..36f7961 100644
--- a/limereport/lrreportrender.cpp
+++ b/limereport/lrreportrender.cpp
@@ -367,15 +367,19 @@ void ReportRender::extractGroupsFunction(BandDesignIntf *band)
                 if (rx.indexIn(contentItem->content())>=0){
                     int pos = 0;
                     while ( (pos = rx.indexIn(contentItem->content(),pos)) != -1){
-                        BandDesignIntf* dataBand = m_patternPageItem->bandByName(rx.cap(Const::DATASOURCE_INDEX));
-                        if (dataBand){
-                            GroupFunction* gf = datasources()->addGroupFunction(functionName,rx.cap(Const::VALUE_INDEX),band->objectName(),dataBand->objectName());
-                            if (gf){
-                                connect(dataBand,SIGNAL(bandRendered(BandDesignIntf*)),gf,SLOT(slotBandRendered(BandDesignIntf*)));
+                        QVector<QString> captures = normalizeCaptures(rx);
+                        if (captures.size()>=3){
+                            int dsIndex = captures.size() == 3 ? Const::DATASOURCE_INDEX - 1 : Const::DATASOURCE_INDEX;
+                            BandDesignIntf* dataBand = m_patternPageItem->bandByName(captures.at(dsIndex));
+                            if (dataBand){
+                                GroupFunction* gf = datasources()->addGroupFunction(functionName,captures.at(Const::VALUE_INDEX),band->objectName(),dataBand->objectName());
+                                if (gf){
+                                    connect(dataBand,SIGNAL(bandRendered(BandDesignIntf*)),gf,SLOT(slotBandRendered(BandDesignIntf*)));
+                                }
+                            } else {
+                                GroupFunction* gf = datasources()->addGroupFunction(functionName,captures.at(Const::VALUE_INDEX),band->objectName(),captures.at(dsIndex));
+                                gf->setInvalid(tr("Databand \"%1\" not found").arg(captures.at(dsIndex)));
                             }
-                        } else {
-                            GroupFunction* gf = datasources()->addGroupFunction(functionName,rx.cap(Const::VALUE_INDEX),band->objectName(),rx.cap(Const::DATASOURCE_INDEX));
-                            gf->setInvalid(tr("Databand \"%1\" not found").arg(rx.cap(Const::DATASOURCE_INDEX)));
                         }
                         pos += rx.matchedLength();
                     }
@@ -388,6 +392,7 @@ void ReportRender::extractGroupsFunction(BandDesignIntf *band)
     }
 }
 
+
 void ReportRender::replaceGroupsFunction(BandDesignIntf *band)
 {
     foreach(BaseDesignIntf* item,band->childBaseItems()){
@@ -399,8 +404,11 @@ void ReportRender::replaceGroupsFunction(BandDesignIntf *band)
                 if (rx.indexIn(content)>=0){
                     int pos = 0;
                     while ( (pos = rx.indexIn(content,pos))!= -1 ){
-                        QString expressionIndex = datasources()->putGroupFunctionsExpressions(rx.cap(Const::VALUE_INDEX));
-                        content.replace(rx.capturedTexts().at(0),QString("%1(%2,%3)").arg(functionName).arg('"'+expressionIndex+'"').arg('"'+band->objectName()+'"'));
+                        QVector<QString> captures = normalizeCaptures(rx);
+                        if (captures.size() >= 3){
+                            QString expressionIndex = datasources()->putGroupFunctionsExpressions(captures.at(Const::VALUE_INDEX));
+                            content.replace(captures.at(0),QString("%1(%2,%3)").arg(functionName).arg('"'+expressionIndex+'"').arg('"'+band->objectName()+'"'));
+                        }
                         pos += rx.matchedLength();
                     }
                     contentItem->setContent(content);