Index: sources/canbus/MessageDispatcher.cpp
===================================================================
diff -u -r5335f246461dfd5b9a48dcc8c01aa97778ae773b -r5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1
--- sources/canbus/MessageDispatcher.cpp	(.../MessageDispatcher.cpp)	(revision 5335f246461dfd5b9a48dcc8c01aa97778ae773b)
+++ sources/canbus/MessageDispatcher.cpp	(.../MessageDispatcher.cpp)	(revision 5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1)
@@ -665,6 +665,7 @@
 {
     QVariantList mData;
     mData += vData.requestedState;
+    mData += vData.modality;
     actionTransmit(GuiActionType::ID_AdjustInitTreatmentReq, mData);
 }
 
Index: sources/canbus/MessageGlobals.h
===================================================================
diff -u -re7a8d5092cb499d6c6ed621eabde437bccbc1e0e -r5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1
--- sources/canbus/MessageGlobals.h	(.../MessageGlobals.h)	(revision e7a8d5092cb499d6c6ed621eabde437bccbc1e0e)
+++ sources/canbus/MessageGlobals.h	(.../MessageGlobals.h)	(revision 5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1)
@@ -222,7 +222,7 @@
     // Pre-Treatment
     // Create Parameters
     // Pre-Treatment Initiate Treatment
-    {Gui::GuiActionType::ID_AdjustInitTreatmentReq                  ,   1 * 4       }, // 1 parameters each 4bytes
+    {Gui::GuiActionType::ID_AdjustInitTreatmentReq                  ,   2 * 4       }, // 1 parameters each 4bytes
     {Gui::GuiActionType::ID_AdjustInitTreatmentRsp                  ,   2 * 4       }, // 2 parameters each 4bytes
     // Pre-Treatment Treatment Parameters Validation/Confirm
     {Gui::GuiActionType::ID_AdjustParametersValidationReq           ,  25 * 4       }, //25 parameters each 4bytes
Index: sources/gui/qml/components/HeaderBar.qml
===================================================================
diff -u -r80e196a153549a10b01ddc52fdd3c4f09d215da6 -r5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1
--- sources/gui/qml/components/HeaderBar.qml	(.../HeaderBar.qml)	(revision 80e196a153549a10b01ddc52fdd3c4f09d215da6)
+++ sources/gui/qml/components/HeaderBar.qml	(.../HeaderBar.qml)	(revision 5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1)
@@ -32,8 +32,9 @@
     }
 
     enum TreatmentModality {
-        Mode_HD  ,
-        Mode_HDF
+        Mode_HD             ,
+        Mode_HDF            ,
+        Mode_HD_Online_Fluid
     }
 
     onIsHDFFeaturedChanged      : vHeaderbarModel.setHeaderbarHDFVisible(_root.isHDFFeatured     )
Index: sources/gui/qml/pages/MainHome.qml
===================================================================
diff -u -r39a514158384c0ad4bfcfb90bafbaa4ca8dc5a26 -r5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1
--- sources/gui/qml/pages/MainHome.qml	(.../MainHome.qml)	(revision 39a514158384c0ad4bfcfb90bafbaa4ca8dc5a26)
+++ sources/gui/qml/pages/MainHome.qml	(.../MainHome.qml)	(revision 5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1)
@@ -82,6 +82,23 @@
         selectColor     : Colors.backgroundButtonSelectDark
     }
 
+    TouchRect { id : _createHDOnlineFluidTreatment
+        anchors {
+            top             : _createHDFTreatment.bottom
+            topMargin       : Variables.defaultMargin * 2
+            horizontalCenter: _createHDFTreatment.horizontalCenter
+        }
+        text.text       : qsTr("Hemodialysis-Online Fluid")
+        onClicked       : createTreatment(HeaderBar.Mode_HD_Online_Fluid)
+        width           : 435                                                   //// ----- @LEAHIZED: Move to Variables.qml
+        height          : 92                                                    //// ----- @LEAHIZED: Move to Variables.qml
+        pixelSize       : 30                                                    //// ----- @LEAHIZED: Move to Variables.qml
+        backgroundColor : Colors.panelBackgroundColor
+        borderColor     : Colors.panelBorderColor
+        selectColor     : Colors.backgroundButtonSelectDark
+    }
+
+
     NotificationBarSmall { id: _notification
         anchors.bottomMargin: Variables.mainMenuHeight
     }
Index: sources/gui/qml/pages/MainStack.qml
===================================================================
diff -u -r4fd94e57fbbdb54c779f28ef50f0997e8eefee5f -r5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1
--- sources/gui/qml/pages/MainStack.qml	(.../MainStack.qml)	(revision 4fd94e57fbbdb54c779f28ef50f0997e8eefee5f)
+++ sources/gui/qml/pages/MainStack.qml	(.../MainStack.qml)	(revision 5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1)
@@ -63,7 +63,7 @@
     MainHome                        { id: _mainHome
         onCreateTreatment: function (vValue) {
             vTreatmentCreate.treatmentModality = vValue
-            vPreTreatmentAdjustmentInitTreatment.doInitiate(                    )
+            vPreTreatmentAdjustmentInitTreatment.doInitiate( vValue )
         }
     }
 
Index: sources/model/hd/adjustment/pretreatment/MPreTreatmentAdjustRequests.h
===================================================================
diff -u -rac290dfdbd332fafc7a70ad7f78a21ef15e7f82e -r5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1
--- sources/model/hd/adjustment/pretreatment/MPreTreatmentAdjustRequests.h	(.../MPreTreatmentAdjustRequests.h)	(revision ac290dfdbd332fafc7a70ad7f78a21ef15e7f82e)
+++ sources/model/hd/adjustment/pretreatment/MPreTreatmentAdjustRequests.h	(.../MPreTreatmentAdjustRequests.h)	(revision 5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1)
@@ -44,6 +44,7 @@
  * | Payload  ||
  * |          ||
  * | #1:(U32) | \ref requestedState |
+ * | #2:(U32) | \ref modality       |
  *
  */
 class MAdjustInitTreatmentReq : public MModel {
@@ -53,7 +54,9 @@
         eCancel    =  0,
         eInitiate  =  1,
         };
-    Options requestedState = eUnknown;
+    Options requestedState  = eUnknown;
+    quint32 modality        = 0;
+
     QString toString() {
         return toString({requestedState});
     }
Index: sources/view/hd/adjustment/pretreatment/VPreTreatmentAdjustmentInitTreatment.cpp
===================================================================
diff -u -ra5760947d3ed0d2748ba023a1c25e3c6aa0b1de1 -r5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1
--- sources/view/hd/adjustment/pretreatment/VPreTreatmentAdjustmentInitTreatment.cpp	(.../VPreTreatmentAdjustmentInitTreatment.cpp)	(revision a5760947d3ed0d2748ba023a1c25e3c6aa0b1de1)
+++ sources/view/hd/adjustment/pretreatment/VPreTreatmentAdjustmentInitTreatment.cpp	(.../VPreTreatmentAdjustmentInitTreatment.cpp)	(revision 5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1)
@@ -46,9 +46,10 @@
  * \brief   View::VPreTreatmentAdjustmentInitTreatment::doInitiate
  * \details requests to initiate a treatment and starting to set treatment parameters.
  */
-void View::VPreTreatmentAdjustmentInitTreatment::doInitiate() {
+void View::VPreTreatmentAdjustmentInitTreatment::doInitiate( int vTreatmentModality  ) {
     AdjustInitTreatmentRequestData data;
     data.requestedState =  AdjustInitTreatmentRequestData::eInitiate;
+    data.modality = vTreatmentModality;
     emit didAdjustment(data);
 }
 
Index: sources/view/hd/adjustment/pretreatment/VPreTreatmentAdjustmentInitTreatment.h
===================================================================
diff -u -ra58f91b077c8131bea3dbde0fc338adb113fc9f3 -r5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1
--- sources/view/hd/adjustment/pretreatment/VPreTreatmentAdjustmentInitTreatment.h	(.../VPreTreatmentAdjustmentInitTreatment.h)	(revision a58f91b077c8131bea3dbde0fc338adb113fc9f3)
+++ sources/view/hd/adjustment/pretreatment/VPreTreatmentAdjustmentInitTreatment.h	(.../VPreTreatmentAdjustmentInitTreatment.h)	(revision 5fdac82425ab432aeda805a3ed7ad8cb2efc2bd1)
@@ -45,7 +45,7 @@
 
     // -----------  Adjust Ultrafiltration
 public slots:
-    void doInitiate();
+    void doInitiate( int vTreatmentModality );
     void doCancel  ();
 
 signals: