diff --git a/qt/python/CMakeLists.txt b/qt/python/CMakeLists.txt
index 629939ecd412e92cb53117c6e440598072270f3d..640683b41611c6fb06cd937bf2c4cb83dde85364 100644
--- a/qt/python/CMakeLists.txt
+++ b/qt/python/CMakeLists.txt
@@ -37,7 +37,7 @@ set ( SIP_HDRS
   ../widgets/common/inc/MantidQtWidgets/Common/DataProcessorUI/QDataProcessorWidget.h
   ../widgets/common/inc/MantidQtWidgets/Common/DataProcessorUI/DataProcessorMainPresenter.h
   ../widgets/common/inc/MantidQtWidgets/Common/DataProcessorUI/DataProcessorAppendRowCommand.h
-  ../widgets/common/inc/MantidQtWidgets/Common/DataProcessorUI/DataProcessorAppendGroupCommand.h
+  ../widgets/common/inc/MantidQtWidgets/Common/DataProcessorUI/AppendGroupCommand.h
   ../widgets/common/inc/MantidQtWidgets/Common/DataProcessorUI/DataProcessorClearSelectedCommand.h
   ../widgets/common/inc/MantidQtWidgets/Common/DataProcessorUI/DataProcessorCopySelectedCommand.h
   ../widgets/common/inc/MantidQtWidgets/Common/DataProcessorUI/DataProcessorCutSelectedCommand.h
diff --git a/qt/python/mantidqt.sip b/qt/python/mantidqt.sip
index 11efdd444d9a870e4090e604b14d0d2d4fc13364..7b63bf607efc8838b67d5fe4a85a2ea9a91aabad 100644
--- a/qt/python/mantidqt.sip
+++ b/qt/python/mantidqt.sip
@@ -1600,13 +1600,13 @@ DataProcessorAppendRowCommand();
 DataProcessorAppendRowCommand(const MantidQt::MantidWidgets::DataProcessor::DataProcessorAppendRowCommand &);
 };
 
-class DataProcessorAppendGroupCommand
+class AppendGroupCommand
 {
 %TypeHeaderCode
-#include "MantidQtWidgets/Common/DataProcessorUI/DataProcessorAppendGroupCommand.h"
+#include "MantidQtWidgets/Common/DataProcessorUI/AppendGroupCommand.h"
 %End
 public:
-DataProcessorAppendGroupCommand(const MantidQt::MantidWidgets::DataProcessor::QDataProcessorWidget &);
+AppendGroupCommand(const MantidQt::MantidWidgets::DataProcessor::QDataProcessorWidget &);
 void execute();
 QString name();
 QString icon();
@@ -1615,8 +1615,8 @@ QString whatsthis();
 QString shortcut();
 
 private:
-DataProcessorAppendGroupCommand();
-DataProcessorAppendGroupCommand(const MantidQt::MantidWidgets::DataProcessor::DataProcessorAppendGroupCommand &);
+AppendGroupCommand();
+AppendGroupCommand(const MantidQt::MantidWidgets::DataProcessor::AppendGroupCommand &);
 };
 
 class DataProcessorClearSelectedCommand
diff --git a/qt/widgets/common/CMakeLists.txt b/qt/widgets/common/CMakeLists.txt
index 52f7d34dfac8325ffaddb2bbf3156372b314b744..21c00f5a35842c5c776c72affda01ba0eeab169d 100644
--- a/qt/widgets/common/CMakeLists.txt
+++ b/qt/widgets/common/CMakeLists.txt
@@ -302,7 +302,7 @@ set ( INC_FILES
 	inc/MantidQtWidgets/Common/WorkspaceIcons.h
 	inc/MantidQtWidgets/Common/AlgorithmHintStrategy.h
 	inc/MantidQtWidgets/Common/CatalogHelper.h
-	inc/MantidQtWidgets/Common/DataProcessorUI/DataProcessorAppendGroupCommand.h
+	inc/MantidQtWidgets/Common/DataProcessorUI/AppendGroupCommand.h
 	inc/MantidQtWidgets/Common/DataProcessorUI/DataProcessorAppendRowCommand.h
 	inc/MantidQtWidgets/Common/DataProcessorUI/DataProcessorClearSelectedCommand.h
 	inc/MantidQtWidgets/Common/DataProcessorUI/DataProcessorCommand.h
diff --git a/qt/widgets/common/inc/MantidQtWidgets/Common/DataProcessorUI/DataProcessorAppendGroupCommand.h b/qt/widgets/common/inc/MantidQtWidgets/Common/DataProcessorUI/AppendGroupCommand.h
similarity index 84%
rename from qt/widgets/common/inc/MantidQtWidgets/Common/DataProcessorUI/DataProcessorAppendGroupCommand.h
rename to qt/widgets/common/inc/MantidQtWidgets/Common/DataProcessorUI/AppendGroupCommand.h
index f1778ae02847a93678df886960015655e6a680a5..5df336d8454b2b02263c6f8a7db5ea067d7f5c8e 100644
--- a/qt/widgets/common/inc/MantidQtWidgets/Common/DataProcessorUI/DataProcessorAppendGroupCommand.h
+++ b/qt/widgets/common/inc/MantidQtWidgets/Common/DataProcessorUI/AppendGroupCommand.h
@@ -7,9 +7,9 @@
 namespace MantidQt {
 namespace MantidWidgets {
 namespace DataProcessor {
-/** @class DataProcessorAppendGroupCommand
+/** @class AppendGroupCommand
 
-DataProcessorAppendGroupCommand defines the action "Insert Group"
+AppendGroupCommand defines the action "Insert Group"
 
 Copyright © 2011-16 ISIS Rutherford Appleton Laboratory, NScD Oak Ridge
 National Laboratory & European Spallation Source
@@ -32,13 +32,13 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 File change history is stored at: <https://github.com/mantidproject/mantid>.
 Code Documentation is available at: <http://doxygen.mantidproject.org>
 */
-class DataProcessorAppendGroupCommand : public DataProcessorCommandBase {
+class AppendGroupCommand : public DataProcessorCommandBase {
 public:
-  DataProcessorAppendGroupCommand(DataProcessorPresenter *tablePresenter)
+  AppendGroupCommand(DataProcessorPresenter *tablePresenter)
       : DataProcessorCommandBase(tablePresenter){};
-  DataProcessorAppendGroupCommand(const QDataProcessorWidget &widget)
+  AppendGroupCommand(const QDataProcessorWidget &widget)
       : DataProcessorCommandBase(widget){};
-  virtual ~DataProcessorAppendGroupCommand(){};
+  virtual ~AppendGroupCommand(){};
 
   void execute() override {
     m_presenter->notify(DataProcessorPresenter::AppendGroupFlag);
diff --git a/qt/widgets/common/src/DataProcessorUI/DataProcessorTwoLevelTreeManager.cpp b/qt/widgets/common/src/DataProcessorUI/DataProcessorTwoLevelTreeManager.cpp
index a2c40a090c79ec6eb28b8419d436e04c1945932b..f16ded4104c4a7b3b929ea6fe346e99a2c42dae4 100644
--- a/qt/widgets/common/src/DataProcessorUI/DataProcessorTwoLevelTreeManager.cpp
+++ b/qt/widgets/common/src/DataProcessorUI/DataProcessorTwoLevelTreeManager.cpp
@@ -2,7 +2,7 @@
 #include "MantidAPI/ITableWorkspace.h"
 #include "MantidAPI/TableRow.h"
 #include "MantidAPI/WorkspaceFactory.h"
-#include "MantidQtWidgets/Common/DataProcessorUI/DataProcessorAppendGroupCommand.h"
+#include "MantidQtWidgets/Common/DataProcessorUI/AppendGroupCommand.h"
 #include "MantidQtWidgets/Common/DataProcessorUI/DataProcessorAppendRowCommand.h"
 #include "MantidQtWidgets/Common/DataProcessorUI/DataProcessorClearSelectedCommand.h"
 #include "MantidQtWidgets/Common/DataProcessorUI/DataProcessorCollapseGroupsCommand.h"
@@ -105,7 +105,7 @@ DataProcessorTwoLevelTreeManager::publishCommands() {
   addCommand(commands, make_unique<DataProcessorSeparatorCommand>(m_presenter));
   addCommand(commands, make_unique<DataProcessorAppendRowCommand>(m_presenter));
   addCommand(commands,
-             make_unique<DataProcessorAppendGroupCommand>(m_presenter));
+             make_unique<AppendGroupCommand>(m_presenter));
   addCommand(commands, make_unique<DataProcessorSeparatorCommand>(m_presenter));
   addCommand(commands, make_unique<DataProcessorGroupRowsCommand>(m_presenter));
   addCommand(commands,
diff --git a/qt/widgets/common/test/DataProcessorUI/DataProcessorCommandsTest.h b/qt/widgets/common/test/DataProcessorUI/DataProcessorCommandsTest.h
index 4c80b77b1a904987235eb2675aae4410f1723d7a..42a41c2f0d8a8a57dfddf2ea5c3b4781e9bc849a 100644
--- a/qt/widgets/common/test/DataProcessorUI/DataProcessorCommandsTest.h
+++ b/qt/widgets/common/test/DataProcessorUI/DataProcessorCommandsTest.h
@@ -5,7 +5,7 @@
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
-#include "MantidQtWidgets/Common/DataProcessorUI/DataProcessorAppendGroupCommand.h"
+#include "MantidQtWidgets/Common/DataProcessorUI/AppendGroupCommand.h"
 #include "MantidQtWidgets/Common/DataProcessorUI/DataProcessorAppendRowCommand.h"
 #include "MantidQtWidgets/Common/DataProcessorUI/DataProcessorClearSelectedCommand.h"
 #include "MantidQtWidgets/Common/DataProcessorUI/DataProcessorCollapseGroupsCommand.h"
@@ -253,7 +253,7 @@ public:
 
   void test_append_group_command() {
     NiceMock<MockDataProcessorPresenter> mockPresenter;
-    DataProcessorAppendGroupCommand command(&mockPresenter);
+    AppendGroupCommand command(&mockPresenter);
 
     // The presenter should be notified with the AppendRowFlag
     EXPECT_CALL(mockPresenter, notify(DataProcessorPresenter::AppendGroupFlag))
diff --git a/qt/widgets/common/test/DataProcessorUI/DataProcessorTwoLevelTreeManagerTest.h b/qt/widgets/common/test/DataProcessorUI/DataProcessorTwoLevelTreeManagerTest.h
index e35150c0944405a4e9951b5bf04a737f227e56f3..4d90c11022ce6ac8389a950766566b46c53c7bfd 100644
--- a/qt/widgets/common/test/DataProcessorUI/DataProcessorTwoLevelTreeManagerTest.h
+++ b/qt/widgets/common/test/DataProcessorUI/DataProcessorTwoLevelTreeManagerTest.h
@@ -9,7 +9,7 @@
 #include "MantidAPI/TableRow.h"
 #include "MantidAPI/WorkspaceFactory.h"
 #include "MantidQtWidgets/Common/DataProcessorUI/DataProcessorTwoLevelTreeManager.h"
-#include "MantidQtWidgets/Common/DataProcessorUI/DataProcessorAppendGroupCommand.h"
+#include "MantidQtWidgets/Common/DataProcessorUI/AppendGroupCommand.h"
 #include "MantidQtWidgets/Common/DataProcessorUI/DataProcessorAppendRowCommand.h"
 #include "MantidQtWidgets/Common/DataProcessorUI/DataProcessorClearSelectedCommand.h"
 #include "MantidQtWidgets/Common/DataProcessorUI/DataProcessorCollapseGroupsCommand.h"
@@ -161,7 +161,7 @@ public:
     TS_ASSERT(dynamic_cast<DataProcessorPlotGroupCommand *>(comm[18].get()));
     TS_ASSERT(dynamic_cast<DataProcessorSeparatorCommand *>(comm[19].get()));
     TS_ASSERT(dynamic_cast<DataProcessorAppendRowCommand *>(comm[20].get()));
-    TS_ASSERT(dynamic_cast<DataProcessorAppendGroupCommand *>(comm[21].get()));
+    TS_ASSERT(dynamic_cast<AppendGroupCommand *>(comm[21].get()));
     TS_ASSERT(dynamic_cast<DataProcessorSeparatorCommand *>(comm[22].get()));
     TS_ASSERT(dynamic_cast<DataProcessorGroupRowsCommand *>(comm[23].get()));
     TS_ASSERT(dynamic_cast<DataProcessorCopySelectedCommand *>(comm[24].get()));
diff --git a/scripts/Interface/ui/dataprocessorinterface/data_processor_gui.py b/scripts/Interface/ui/dataprocessorinterface/data_processor_gui.py
index cf85e90e1e2f96f21343001b3fa9a546a1049822..4a88f9381fbbf2ca0a206185995e1f02362b2d3c 100644
--- a/scripts/Interface/ui/dataprocessorinterface/data_processor_gui.py
+++ b/scripts/Interface/ui/dataprocessorinterface/data_processor_gui.py
@@ -165,7 +165,7 @@ class DataProcessorGui(QtGui.QMainWindow, ui_data_processor_window.Ui_DataProces
         self._create_action(MantidQt.MantidWidgets.DataProcessorPlotRowCommand(self.data_processor_table), self.menuEdit)
         self._create_action(MantidQt.MantidWidgets.DataProcessorPlotGroupCommand(self.data_processor_table), self.menuEdit)
         self._create_action(MantidQt.MantidWidgets.DataProcessorAppendRowCommand(self.data_processor_table), self.menuEdit)
-        self._create_action(MantidQt.MantidWidgets.DataProcessorAppendGroupCommand(self.data_processor_table), self.menuEdit)
+        self._create_action(MantidQt.MantidWidgets.AppendGroupCommand(self.data_processor_table), self.menuEdit)
         self._create_action(MantidQt.MantidWidgets.DataProcessorGroupRowsCommand(self.data_processor_table), self.menuEdit)
         self._create_action(MantidQt.MantidWidgets.DataProcessorCopySelectedCommand(self.data_processor_table), self.menuEdit)
         self._create_action(MantidQt.MantidWidgets.DataProcessorCutSelectedCommand(self.data_processor_table), self.menuEdit)
diff --git a/scripts/Interface/ui/poldi/poldi_gui.py b/scripts/Interface/ui/poldi/poldi_gui.py
index 626c531d1ae7d7bebc5a5989349ba29fe093acbd..8dedca899b66c4aa79e2a7ae0854b88cc19a6116 100644
--- a/scripts/Interface/ui/poldi/poldi_gui.py
+++ b/scripts/Interface/ui/poldi/poldi_gui.py
@@ -154,7 +154,7 @@ class PoldiGui(QtGui.QMainWindow, ui_poldi_window.Ui_PoldiWindow):
         self._create_action(MantidQt.MantidWidgets.DataProcessorPlotRowCommand(self.data_processor_table), self.menuEdit)
         self._create_action(MantidQt.MantidWidgets.DataProcessorPlotGroupCommand(self.data_processor_table), self.menuEdit)
         self._create_action(MantidQt.MantidWidgets.DataProcessorAppendRowCommand(self.data_processor_table), self.menuEdit)
-        self._create_action(MantidQt.MantidWidgets.DataProcessorAppendGroupCommand(self.data_processor_table), self.menuEdit)
+        self._create_action(MantidQt.MantidWidgets.AppendGroupCommand(self.data_processor_table), self.menuEdit)
         self._create_action(MantidQt.MantidWidgets.DataProcessorGroupRowsCommand(self.data_processor_table), self.menuEdit)
         self._create_action(MantidQt.MantidWidgets.DataProcessorCopySelectedCommand(self.data_processor_table), self.menuEdit)
         self._create_action(MantidQt.MantidWidgets.DataProcessorCutSelectedCommand(self.data_processor_table), self.menuEdit)