diff --git a/QtPMbrowser/DlgExportMetadata.cpp b/QtPMbrowser/DlgExportMetadata.cpp
index 7963e5f..f19bf05 100644
--- a/QtPMbrowser/DlgExportMetadata.cpp
+++ b/QtPMbrowser/DlgExportMetadata.cpp
@@ -22,14 +22,16 @@
 #include "DlgExportMetadata.h"
 #include "ui_DlgExportMetadata.h"
 
-DlgExportMetadata::DlgExportMetadata(QWidget *parent)
-	: QDialog(parent), selection{ }, ui(new Ui::DlgExportMetadata())
+DlgExportMetadata::DlgExportMetadata(PMbrowserWindow* parent)
+    : QDialog(parent), selection{}, ui(new Ui::DlgExportMetadata()), pmbrowserwindow{ parent }
 {
 	QSettings settings;
 	ui->setupUi(this);
 	auto index = settings.value("DlgExportMetadata/selection", 3).toInt();
 	ui->comboBoxLevel->setCurrentIndex(index);
     ui->checkBoxSystemLocale->setChecked(settings.value("DlgExportMetadata/nativeEncoding", 0).toInt());
+    QObject::connect(ui->pushButtonSlectParamters, &QPushButton::clicked,
+        pmbrowserwindow, &PMbrowserWindow::on_actionSelect_Parameters_triggered);
     QObject::connect(ui->pushButtonCopy, &QPushButton::clicked, this, &DlgExportMetadata::copyToClipboard);
 }
 
@@ -38,7 +40,7 @@ DlgExportMetadata::~DlgExportMetadata()
 	delete ui;
 }
 
-void DlgExportMetadata::accept(){
+void DlgExportMetadata::accept() {
 	QSettings settings;
 	selection = ui->comboBoxLevel->currentIndex();
 	settings.setValue("DlgExportMetadata/selection", selection);
diff --git a/QtPMbrowser/DlgExportMetadata.h b/QtPMbrowser/DlgExportMetadata.h
index 4869b39..bf8dd20 100644
--- a/QtPMbrowser/DlgExportMetadata.h
+++ b/QtPMbrowser/DlgExportMetadata.h
@@ -20,6 +20,7 @@
 #pragma once
 
 #include <QDialog>
+#include <pmbrowserwindow.h>
 
 QT_BEGIN_NAMESPACE
 namespace Ui { class DlgExportMetadata; }
@@ -33,7 +34,7 @@ public slots:
     void copyToClipboard();
 
 public:
-	DlgExportMetadata(QWidget* parent = nullptr);
+    DlgExportMetadata(PMbrowserWindow* parent);
 	~DlgExportMetadata();
 	int getSelection() {
 		return selection;
@@ -48,7 +49,8 @@ public slots:
 
 private:
 	int selection;
-	Ui::DlgExportMetadata *ui;
+    Ui::DlgExportMetadata* ui;
+    PMbrowserWindow* pmbrowserwindow;
     bool m_doCopy{ false };
     bool m_nativeEncoding{ false };
 };
diff --git a/QtPMbrowser/DlgExportMetadata.ui b/QtPMbrowser/DlgExportMetadata.ui
index 976dce5..fcaa30b 100644
--- a/QtPMbrowser/DlgExportMetadata.ui
+++ b/QtPMbrowser/DlgExportMetadata.ui
@@ -13,15 +13,39 @@
   <property name="windowTitle">
    <string>Export metadata as table</string>
   </property>
-  <layout class="QGridLayout" name="gridLayout" rowstretch="0,0,0,0,0,0,0,0" columnstretch="0,0,0,0">
-   <item row="1" column="0" colspan="3">
-    <widget class="QLabel" name="label">
+  <layout class="QGridLayout" name="gridLayout" rowstretch="0,0,0,0,0,0,0,0,0" columnstretch="0,0,0,0">
+   <item row="3" column="0" colspan="4">
+    <widget class="QComboBox" name="comboBoxLevel">
+     <item>
+      <property name="text">
+       <string>Group</string>
+      </property>
+     </item>
+     <item>
+      <property name="text">
+       <string>Series</string>
+      </property>
+     </item>
+     <item>
+      <property name="text">
+       <string>Sweep</string>
+      </property>
+     </item>
+     <item>
+      <property name="text">
+       <string>Trace</string>
+      </property>
+     </item>
+    </widget>
+   </item>
+   <item row="5" column="0" colspan="2">
+    <widget class="QPushButton" name="pushButtonCopy">
      <property name="text">
-      <string>One line per:</string>
+      <string>copy to clipboard</string>
      </property>
     </widget>
    </item>
-   <item row="6" column="1" colspan="3">
+   <item row="7" column="1" colspan="3">
     <spacer name="verticalSpacer">
      <property name="orientation">
       <enum>Qt::Orientation::Vertical</enum>
@@ -34,7 +58,7 @@
      </property>
     </spacer>
    </item>
-   <item row="7" column="1" colspan="3">
+   <item row="8" column="1" colspan="3">
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="orientation">
       <enum>Qt::Orientation::Horizontal</enum>
@@ -47,28 +71,11 @@
      </property>
     </widget>
    </item>
-   <item row="2" column="0" colspan="4">
-    <widget class="QComboBox" name="comboBoxLevel">
-     <item>
-      <property name="text">
-       <string>Group</string>
-      </property>
-     </item>
-     <item>
-      <property name="text">
-       <string>Series</string>
-      </property>
-     </item>
-     <item>
-      <property name="text">
-       <string>Sweep</string>
-      </property>
-     </item>
-     <item>
-      <property name="text">
-       <string>Trace</string>
-      </property>
-     </item>
+   <item row="4" column="0" colspan="3">
+    <widget class="QCheckBox" name="checkBoxSystemLocale">
+     <property name="text">
+      <string>use system default formatting</string>
+     </property>
     </widget>
    </item>
    <item row="0" column="0" colspan="4">
@@ -84,17 +91,17 @@
      </property>
     </widget>
    </item>
-   <item row="4" column="0" colspan="2">
-    <widget class="QPushButton" name="pushButtonCopy">
+   <item row="2" column="0" colspan="4">
+    <widget class="QLabel" name="label">
      <property name="text">
-      <string>copy to clipboard</string>
+      <string>One line per:</string>
      </property>
     </widget>
    </item>
-   <item row="3" column="0" colspan="3">
-    <widget class="QCheckBox" name="checkBoxSystemLocale">
+   <item row="1" column="0">
+    <widget class="QPushButton" name="pushButtonSlectParamters">
      <property name="text">
-      <string>use system default formatting</string>
+      <string>Select Parameters...</string>
      </property>
     </widget>
    </item>
diff --git a/QtPMbrowser/pmbrowserwindow.h b/QtPMbrowser/pmbrowserwindow.h
index 694fa1e..6994891 100644
--- a/QtPMbrowser/pmbrowserwindow.h
+++ b/QtPMbrowser/pmbrowserwindow.h
@@ -61,12 +61,14 @@ private slots:
     void prepareTreeContextMenu(const QPoint& pos);
     void on_treePulse_currentItemChanged(QTreeWidgetItem *current, QTreeWidgetItem *previous);
     void on_treePulse_itemDoubleClicked(QTreeWidgetItem* item, int column);
-    void on_actionSelect_Parameters_triggered();
     void on_actionPrint_All_Params_triggered();
     void on_menuGraph_aboutToShow();
     void openHelp();
     void openPreferences();
 
+public slots:
+    void on_actionSelect_Parameters_triggered();
+
 protected:
     void dragEnterEvent(QDragEnterEvent* event) override;
     void dropEvent(QDropEvent* event) override;
diff --git a/hekatoolslib/DatFile.cpp b/hekatoolslib/DatFile.cpp
index bdebeec..ece092a 100644
--- a/hekatoolslib/DatFile.cpp
+++ b/hekatoolslib/DatFile.cpp
@@ -71,6 +71,7 @@ void DatFile::InitFromStream(std::istream& infile)
     nitems = std::min(nitems, 12); // make sure malformed files do not cause out of bounds read
     for (int i = 0; i < nitems; ++i) {
         auto& item = bh->BundleItems[i];
+        if (item.Length == 0) continue;
         if (isSwapped) {
             swapInPlace(item.Length);
             swapInPlace(item.Start);