diff --git a/xs/src/slic3r/GUI/GUI_ObjectParts.cpp b/xs/src/slic3r/GUI/GUI_ObjectParts.cpp
index deb303c1a6..c4dc631a2f 100644
--- a/xs/src/slic3r/GUI/GUI_ObjectParts.cpp
+++ b/xs/src/slic3r/GUI/GUI_ObjectParts.cpp
@@ -81,15 +81,15 @@ wxBoxSizer* content_objects_list(wxWindow *win)
 
 	// column 0(Icon+Text) of the view control:
 	m_objects_ctrl->AppendIconTextColumn(_(L("Name")), 0, wxDATAVIEW_CELL_INERT, 150,
-		wxALIGN_LEFT, wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_RESIZABLE);
+		wxALIGN_LEFT, /*wxDATAVIEW_COL_SORTABLE | */wxDATAVIEW_COL_RESIZABLE);
 
 	// column 1 of the view control:
 	m_objects_ctrl->AppendTextColumn(_(L("Copy")), 1, wxDATAVIEW_CELL_INERT, 65,
-		wxALIGN_CENTER_HORIZONTAL, wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_RESIZABLE);
+		wxALIGN_CENTER_HORIZONTAL, wxDATAVIEW_COL_RESIZABLE);
 
 	// column 2 of the view control:
 	m_objects_ctrl->AppendTextColumn(_(L("Scale")), 2, wxDATAVIEW_CELL_INERT, 70,
-		wxALIGN_CENTER_HORIZONTAL, wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_RESIZABLE);
+		wxALIGN_CENTER_HORIZONTAL, wxDATAVIEW_COL_RESIZABLE);
 
 	m_objects_ctrl->Bind(wxEVT_DATAVIEW_SELECTION_CHANGED, [](wxEvent& event)
 	{
@@ -106,7 +106,8 @@ wxBoxSizer* content_objects_list(wxWindow *win)
 				obj_idx = m_objects_model->GetIdByItem(item);
 			else {
 				auto parent = m_objects_model->GetParent(item);
-				obj_idx = m_objects_model->GetIdByItem(parent); // TODO Temporary decision for sub-objects selection
+				// Take ID of the parent object to "inform" perl-side which object have to be selected on the scene
+				obj_idx = m_objects_model->GetIdByItem(parent);
 			}
 		}
 		m_selected_object_id = obj_idx;
@@ -605,7 +606,7 @@ void on_btn_move_up(){
 	if (0 < volume_id && volume_id < volumes.size()) {
 		std::swap(volumes[volume_id - 1], volumes[volume_id]);
 		m_parts_changed = true;
-		// TODO update model ($volume_id - 1);
+		m_objects_ctrl->Select(m_objects_model->MoveChildUp(item));
 	}
 }
 
@@ -618,9 +619,9 @@ void on_btn_move_down(){
 		return;
 	auto& volumes = m_objects[m_selected_object_id]->volumes;
 	if (0 <= volume_id && volume_id+1 < volumes.size()) {
-		std::swap(volumes[volume_id + 1], volumes[volume_id - 1]);
+		std::swap(volumes[volume_id + 1], volumes[volume_id]);
 		m_parts_changed = true;
-		// TODO update model ($volume_id - 1);
+		m_objects_ctrl->Select(m_objects_model->MoveChildDown(item));
 	}
 }
 
diff --git a/xs/src/slic3r/GUI/wxExtensions.cpp b/xs/src/slic3r/GUI/wxExtensions.cpp
index 63c20e086e..7b35ce9a05 100644
--- a/xs/src/slic3r/GUI/wxExtensions.cpp
+++ b/xs/src/slic3r/GUI/wxExtensions.cpp
@@ -556,6 +556,54 @@ bool PrusaObjectDataViewModel::SetValue(const wxVariant &variant, const int item
 	return m_objects[item_idx]->SetValue(variant, col);
 }
 
+wxDataViewItem PrusaObjectDataViewModel::MoveChildUp(const wxDataViewItem &item)
+{
+	auto ret_item = wxDataViewItem(0);
+	wxASSERT(item.IsOk());
+	PrusaObjectDataViewModelNode *node = (PrusaObjectDataViewModelNode*)item.GetID();
+	if (!node)      // happens if item.IsOk()==false
+		return ret_item;
+
+	auto node_parent = node->GetParent();
+	if (!node_parent) // If isn't part, but object
+		return ret_item;
+
+	auto volume_id = node->GetVolumeId();
+	if (0 < volume_id && volume_id < node_parent->GetChildCount()){
+		node_parent->SwapChildrens(volume_id - 1, volume_id);
+		ret_item = wxDataViewItem(node_parent->GetNthChild(volume_id - 1));
+		ItemChanged(item);
+		ItemChanged(ret_item);
+	}
+	else
+		ret_item = wxDataViewItem(node_parent->GetNthChild(0));
+	return ret_item;
+}
+
+wxDataViewItem PrusaObjectDataViewModel::MoveChildDown(const wxDataViewItem &item)
+{
+	auto ret_item = wxDataViewItem(0);
+	wxASSERT(item.IsOk());
+	PrusaObjectDataViewModelNode *node = (PrusaObjectDataViewModelNode*)item.GetID();
+	if (!node)      // happens if item.IsOk()==false
+		return ret_item;
+
+	auto node_parent = node->GetParent();
+	if (!node_parent) // If isn't part, but object
+		return ret_item;
+
+	auto volume_id = node->GetVolumeId();
+	if (0 <= volume_id && volume_id+1 < node_parent->GetChildCount()){
+		node_parent->SwapChildrens(volume_id + 1, volume_id);
+		ret_item = wxDataViewItem(node_parent->GetNthChild(volume_id + 1));
+		ItemChanged(item);
+		ItemChanged(ret_item);
+	}
+	else
+		ret_item = wxDataViewItem(node_parent->GetNthChild(node_parent->GetChildCount()-1));
+	return ret_item;
+}
+
 // bool MyObjectTreeModel::IsEnabled(const wxDataViewItem &item, unsigned int col) const
 // {
 // 
diff --git a/xs/src/slic3r/GUI/wxExtensions.hpp b/xs/src/slic3r/GUI/wxExtensions.hpp
index c28be59b3b..54631e14a5 100644
--- a/xs/src/slic3r/GUI/wxExtensions.hpp
+++ b/xs/src/slic3r/GUI/wxExtensions.hpp
@@ -282,6 +282,33 @@ public:
 	const int& GetVolumeId(){
 		return m_volume_id;
 	}
+
+	// use this function only for childrens
+	void AssignAllVal(PrusaObjectDataViewModelNode& from_node)
+	{
+		// ! Don't overwrite other values because of equality of this values for all children --
+		m_name = from_node.m_name;
+		m_icon = from_node.m_icon;
+		m_volume_id = from_node.m_volume_id;
+	}
+
+	bool SwapChildrens(int frst_id, int scnd_id) {
+		if (GetChildCount() < 2 || 
+			frst_id < 0 || frst_id >= GetChildCount() || 
+			scnd_id < 0 || scnd_id >= GetChildCount())
+			return false;
+
+		PrusaObjectDataViewModelNode new_scnd = *GetNthChild(frst_id);
+		PrusaObjectDataViewModelNode new_frst = *GetNthChild(scnd_id);
+
+		new_scnd.m_volume_id = m_children.Item(scnd_id)->m_volume_id;
+		new_frst.m_volume_id = m_children.Item(frst_id)->m_volume_id;
+
+		m_children.Item(frst_id)->AssignAllVal(new_frst);
+		m_children.Item(scnd_id)->AssignAllVal(new_scnd);
+		return true;
+	}
+
 };
 
 // ----------------------------------------------------------------------------
@@ -328,6 +355,9 @@ public:
 		const wxDataViewItem &item, unsigned int col) override;
 	bool SetValue(const wxVariant &variant, const int item_idx, unsigned int col);
 
+	wxDataViewItem MoveChildUp(const wxDataViewItem &item);
+	wxDataViewItem MoveChildDown(const wxDataViewItem &item);
+
 // 	virtual bool IsEnabled(const wxDataViewItem &item,
 // 		unsigned int col) const override;