diff --git a/slsDetectorGui/forms/form_tab_dataoutput.ui b/slsDetectorGui/forms/form_tab_dataoutput.ui
index 8fabbf474..0ebfddfe9 100644
--- a/slsDetectorGui/forms/form_tab_dataoutput.ui
+++ b/slsDetectorGui/forms/form_tab_dataoutput.ui
@@ -57,7 +57,7 @@
       <number>6</number>
      </property>
      <item row="3" column="0">
-      <widget class="QCheckBox" name="chkTenGiga">
+      <widget class="QCheckBox" name="chkUnused">
        <property name="enabled">
         <bool>false</bool>
        </property>
@@ -69,21 +69,7 @@ Compression using Root. Available only for Gotthard in Expert Mode.
 &lt;/nobr&gt;</string>
        </property>
        <property name="text">
-        <string>10GbE</string>
-       </property>
-      </widget>
-     </item>
-     <item row="2" column="0">
-      <widget class="QCheckBox" name="chkCompression">
-       <property name="toolTip">
-        <string>&lt;nobr&gt;
-Compression using Root. Available only for Gotthard in Expert Mode.
-&lt;/nobr&gt;&lt;br&gt;&lt;nobr&gt;
- #r_compression#
-&lt;/nobr&gt;</string>
-       </property>
-       <property name="text">
-        <string>Compression</string>
+        <string>Unused</string>
        </property>
       </widget>
      </item>
@@ -104,6 +90,23 @@ Compression using Root. Available only for Gotthard in Expert Mode.
        </property>
       </widget>
      </item>
+     <item row="2" column="0">
+      <widget class="QCheckBox" name="chkTenGiga">
+       <property name="enabled">
+        <bool>false</bool>
+       </property>
+       <property name="toolTip">
+        <string>&lt;nobr&gt;
+Compression using Root. Available only for Gotthard in Expert Mode.
+&lt;/nobr&gt;&lt;br&gt;&lt;nobr&gt;
+ #r_compression#
+&lt;/nobr&gt;</string>
+       </property>
+       <property name="text">
+        <string>10GbE</string>
+       </property>
+      </widget>
+     </item>
     </layout>
    </widget>
    <widget class="QWidget" name="gridLayoutWidget_2">
diff --git a/slsDetectorGui/include/qTabDataOutput.h b/slsDetectorGui/include/qTabDataOutput.h
index d971e97ef..9f0957cd8 100644
--- a/slsDetectorGui/include/qTabDataOutput.h
+++ b/slsDetectorGui/include/qTabDataOutput.h
@@ -45,12 +45,6 @@ public:
 	 */
 	int VerifyOutputDirectory();
 
-	/** To enable expert mode
-	 * @param enable to enable if true
-	 */
-	void SetExpertMode(bool enable);
-
-
 private:
 	/** The sls detector object */
 	multiSlsDetector *myDet;
@@ -86,9 +80,6 @@ private:
 	 */
 	void PopulateDetectors();
 
-	/** Get Compression */
-	void GetCompression();
-
 	/** update speed */
 	void UpdateSpeedFromServer();
 
@@ -140,9 +131,6 @@ void SetOutputDir();
 /** set output directory*/
 void GetOutputDir();
 
-/** set compression */
-void SetCompression(bool enable);
-
 /** enable 10GbE */
 void EnableTenGigabitEthernet(bool enable, int get=0);
 
diff --git a/slsDetectorGui/src/qDetectorMain.cpp b/slsDetectorGui/src/qDetectorMain.cpp
index d83b52680..a084ca9f2 100644
--- a/slsDetectorGui/src/qDetectorMain.cpp
+++ b/slsDetectorGui/src/qDetectorMain.cpp
@@ -417,7 +417,6 @@ void qDetectorMain::EnableModes(QAction *action){
 		actionSaveCalibration->setVisible(enable);
 		tab_measurement->SetExpertMode(enable);
 		tab_settings->SetExpertMode(enable);
-		tab_dataoutput->SetExpertMode(enable);
 #ifdef VERBOSE
 		cout << "Setting Expert Mode to " << enable << endl;
 #endif
diff --git a/slsDetectorGui/src/qTabDataOutput.cpp b/slsDetectorGui/src/qTabDataOutput.cpp
index 38fb7e6ea..f8969d938 100644
--- a/slsDetectorGui/src/qTabDataOutput.cpp
+++ b/slsDetectorGui/src/qTabDataOutput.cpp
@@ -80,8 +80,8 @@ void qTabDataOutput::SetupWidgetWindow(){
 	outDirTip = lblOutputDir->toolTip();
 
 
-	//expert mode is not enabled initially
-	chkCompression->setEnabled(false);
+	//not used at all, later used for gappixels
+	chkUnused->setEnabled(false);
 
 	//enabling file format depending on detector type
 	SetupFileFormat();
@@ -167,8 +167,6 @@ void qTabDataOutput::Initialization(){
 	connect(chkAngular,			SIGNAL(toggled(bool)), 	this, 	SLOT(SetAngularCorrection()));
 	//discard bad channels
 	connect(chkDiscardBad,		SIGNAL(toggled(bool)), 	this, 	SLOT(DiscardBadChannels()));
-	//compression
-	connect(chkCompression,		SIGNAL(toggled(bool)), 	this, 	SLOT(SetCompression(bool)));
 	//10GbE
 	connect(chkTenGiga,			SIGNAL(toggled(bool)), 	this, 	SLOT(EnableTenGigabitEthernet(bool)));
 
@@ -186,18 +184,6 @@ void qTabDataOutput::Initialization(){
 //-------------------------------------------------------------------------------------------------------------------------------------------------
 
 
-void qTabDataOutput::SetExpertMode(bool enable){
-	if((detType == slsDetectorDefs::GOTTHARD) || (detType == slsDetectorDefs::MOENCH)){
-		chkCompression->setEnabled(enable);
-		GetCompression();
-	}
-
-}
-
-
-//-------------------------------------------------------------------------------------------------------------------------------------------------
-
-
 void qTabDataOutput::BrowseOutputDir()
 {
 	QString directory = QFileDialog::getExistingDirectory(this,tr("Choose Output Directory "),dispOutputDir->text());
@@ -737,34 +723,6 @@ void qTabDataOutput::SetOutputDir(){
 //-------------------------------------------------------------------------------------------------------------------------------------------------
 
 
-void qTabDataOutput::GetCompression(){
-	disconnect(chkCompression,		SIGNAL(toggled(bool)), 	this, 	SLOT(SetCompression(bool)));
-	int ret = myDet->enableReceiverCompression();
-	if(ret > 0)	chkCompression->setChecked(true);
-	else		chkCompression->setChecked(false);
-	connect(chkCompression,			SIGNAL(toggled(bool)), 	this, 	SLOT(SetCompression(bool)));
-
-	qDefs::checkErrorMessage(myDet,"qTabDataOutput::GetCompression");
-}
-
-
-//-------------------------------------------------------------------------------------------------------------------------------------------------
-
-
-void qTabDataOutput::SetCompression(bool enable){
-	disconnect(chkCompression,		SIGNAL(toggled(bool)), 	this, 	SLOT(SetCompression(bool)));
-	int ret = myDet->enableReceiverCompression(enable);
-	if(ret > 0)	chkCompression->setChecked(true);
-	else		chkCompression->setChecked(false);
-	connect(chkCompression,			SIGNAL(toggled(bool)), 	this, 	SLOT(SetCompression(bool)));
-
-	qDefs::checkErrorMessage(myDet,"qTabDataOutput::SetCompression");
-}
-
-
-//-------------------------------------------------------------------------------------------------------------------------------------------------
-
-
 void qTabDataOutput::EnableTenGigabitEthernet(bool enable,int get){
 #ifdef VERBOSE
 	cout  << endl << "Enabling/Disabling 10GbE" << endl;
@@ -1102,14 +1060,6 @@ void qTabDataOutput::Refresh(){
 		btnOutputBrowse->setToolTip(dispOutputDir->toolTip());
 	}
 
-	//getting compression
-	if(chkCompression->isEnabled()){
-#ifdef VERBOSE
-		cout  << "Getting compression" << endl;
-#endif
-		GetCompression();
-	}
-
 	//getting 10GbE
 	if(chkTenGiga->isEnabled()){
 #ifdef VERBOSE