diff --git a/CameraController.cpp b/CameraController.cpp
index 567f089..909ed9a 100644
--- a/CameraController.cpp
+++ b/CameraController.cpp
@@ -1,7 +1,7 @@
 #include "CameraController.h"
 #include "win32Defines.h"
 #include <iostream>
-#include "PhysicalInstance.h"
+#include "PartInstance.h"
 #include "Demo.h"
 #include "AudioPlayer.h"
 
@@ -141,7 +141,7 @@ void CameraController::centerCamera(Instance* selection)
 	}
 	else
 	{
-		Vector3 partPos = ((PhysicalInstance*)selection)->getPosition()/2;
+		Vector3 partPos = ((PartInstance*)selection)->getPosition()/2;
 		lookAt(partPos);
 		focusPosition=partPos;
 		zoom=((partPos-frame.translation).magnitude());
diff --git a/DataModelInstance.cpp b/DataModelInstance.cpp
index 4cba7db..8d8ba72 100644
--- a/DataModelInstance.cpp
+++ b/DataModelInstance.cpp
@@ -15,6 +15,7 @@ DataModelInstance::DataModelInstance(void)
 	mousey = 0;
 	mouseButton1Down = false;
 	showMessage = false;
+	canDelete = false;
 }
 
 DataModelInstance::~DataModelInstance(void)
diff --git a/G3DTest.vcproj b/G3DTest.vcproj
index f234481..79a5e2c 100644
--- a/G3DTest.vcproj
+++ b/G3DTest.vcproj
@@ -313,6 +313,10 @@
 					RelativePath=".\DataModelInstance.cpp"
 					>
 				</File>
+				<File
+					RelativePath=".\GroupInstance.cpp"
+					>
+				</File>
 				<File
 					RelativePath=".\ImageButtonInstance.cpp"
 					>
@@ -322,7 +326,11 @@
 					>
 				</File>
 				<File
-					RelativePath=".\PhysicalInstance.cpp"
+					RelativePath=".\PartInstance.cpp"
+					>
+				</File>
+				<File
+					RelativePath=".\PVInstance.cpp"
 					>
 				</File>
 				<File
@@ -410,6 +418,10 @@
 					RelativePath=".\DataModelInstance.h"
 					>
 				</File>
+				<File
+					RelativePath=".\GroupInstance.h"
+					>
+				</File>
 				<File
 					RelativePath=".\ImageButtonInstance.h"
 					>
@@ -419,7 +431,11 @@
 					>
 				</File>
 				<File
-					RelativePath=".\PhysicalInstance.h"
+					RelativePath=".\PartInstance.h"
+					>
+				</File>
+				<File
+					RelativePath=".\PVInstance.h"
 					>
 				</File>
 				<File
diff --git a/GroupInstance.cpp b/GroupInstance.cpp
new file mode 100644
index 0000000..7560448
--- /dev/null
+++ b/GroupInstance.cpp
@@ -0,0 +1,25 @@
+#include "GroupInstance.h"
+
+GroupInstance::GroupInstance(void)
+{
+	PVInstance::PVInstance();
+}
+
+GroupInstance::GroupInstance(const GroupInstance &oinst)
+{
+	PVInstance::PVInstance(oinst);
+}
+
+GroupInstance::~GroupInstance(void)
+{
+}
+
+std::vector<PROPGRIDITEM> GroupInstance::getProperties()
+{
+	std::vector<PROPGRIDITEM> properties = PVInstance::getProperties();
+	return properties;
+}
+void GroupInstance::PropUpdate(LPPROPGRIDITEM &pItem)
+{
+	PVInstance::PropUpdate(pItem);
+}
diff --git a/GroupInstance.h b/GroupInstance.h
new file mode 100644
index 0000000..98d63e3
--- /dev/null
+++ b/GroupInstance.h
@@ -0,0 +1,13 @@
+#pragma once
+#include "PVInstance.h"
+
+class GroupInstance :
+	public PVInstance
+{
+public:
+	GroupInstance(void);
+	~GroupInstance(void);
+	GroupInstance(const GroupInstance &oinst);
+	virtual std::vector<PROPGRIDITEM> getProperties();
+	virtual void PropUpdate(LPPROPGRIDITEM &pItem);
+};
diff --git a/Instance.cpp b/Instance.cpp
index 7cc363d..1a9dbb0 100644
--- a/Instance.cpp
+++ b/Instance.cpp
@@ -9,6 +9,7 @@ Instance::Instance(void)
 	name = "Default Game Instance";
 	className = "BaseInstance";
 	listicon = 0;
+	canDelete = true;
 }
 
 Instance::Instance(const Instance &oinst)
@@ -16,6 +17,7 @@ Instance::Instance(const Instance &oinst)
 	
 	name = oinst.name;
 	className = oinst.className;
+	canDelete = oinst.canDelete;
 	//setParent(oinst.parent);
 }
 
diff --git a/Instance.h b/Instance.h
index 07231a1..2af6866 100644
--- a/Instance.h
+++ b/Instance.h
@@ -5,6 +5,7 @@
 class Instance
 {
 public:
+	bool canDelete;
 	Instance(void);
 	Instance(const Instance&);
 	virtual ~Instance(void);
@@ -12,7 +13,7 @@ public:
 	virtual void render(RenderDevice*);
 	std::vector<Instance*> children; // All children.
 	std::string getClassName();
-	virtual Instance* findFirstChild(std::string);
+	Instance* findFirstChild(std::string);
 	std::vector<Instance* > getChildren();
 	std::vector<Instance* > getAllChildren();
 	void setParent(Instance*);
diff --git a/PVInstance.cpp b/PVInstance.cpp
new file mode 100644
index 0000000..8f0332d
--- /dev/null
+++ b/PVInstance.cpp
@@ -0,0 +1,25 @@
+#include "PVInstance.h"
+
+PVInstance::PVInstance(void)
+{
+	Instance::Instance();
+}
+
+PVInstance::PVInstance(const PVInstance &oinst)
+{
+	Instance::Instance(oinst);
+}
+
+PVInstance::~PVInstance(void)
+{
+}
+
+std::vector<PROPGRIDITEM> PVInstance::getProperties()
+{
+	std::vector<PROPGRIDITEM> properties = Instance::getProperties();
+	return properties;
+}
+void PVInstance::PropUpdate(LPPROPGRIDITEM &pItem)
+{
+	Instance::PropUpdate(pItem);
+}
diff --git a/PVInstance.h b/PVInstance.h
new file mode 100644
index 0000000..99f2233
--- /dev/null
+++ b/PVInstance.h
@@ -0,0 +1,13 @@
+#pragma once
+#include "instance.h"
+
+class PVInstance :
+	public Instance
+{
+public:
+	PVInstance(void);
+	~PVInstance(void);
+	PVInstance(const PVInstance &oinst);
+	virtual std::vector<PROPGRIDITEM> getProperties();
+	virtual void PropUpdate(LPPROPGRIDITEM &pItem);
+};
diff --git a/PhysicalInstance.cpp b/PartInstance.cpp
similarity index 88%
rename from PhysicalInstance.cpp
rename to PartInstance.cpp
index c8734f3..7c1f2e1 100644
--- a/PhysicalInstance.cpp
+++ b/PartInstance.cpp
@@ -1,11 +1,11 @@
-#include "PhysicalInstance.h"
+#include "PartInstance.h"
 #include "Globals.h"
 
 
-PhysicalInstance::PhysicalInstance(void)
+PartInstance::PartInstance(void)
 {
-	Instance::Instance();
-    name = "Default PhysicalInstance";
+	PVInstance::PVInstance();
+    name = "Default PartInstance";
 	className = "Part";
 	canCollide = true;
 	anchored = true;
@@ -22,11 +22,12 @@ PhysicalInstance::PhysicalInstance(void)
 	bottom = Enum::SurfaceType::Smooth;
 }
 
-PhysicalInstance::PhysicalInstance(const PhysicalInstance &oinst)
+PartInstance::PartInstance(const PartInstance &oinst)
 {
-	Instance::Instance(oinst);
+	PVInstance::PVInstance(oinst);
 	//name = oinst.name;
 	//className = "Part";
+	name = oinst.name;
 	canCollide = oinst.canCollide;
 	setParent(oinst.parent);
 	anchored = oinst.anchored;
@@ -43,7 +44,7 @@ PhysicalInstance::PhysicalInstance(const PhysicalInstance &oinst)
 	bottom = oinst.bottom;
 }
 
-void PhysicalInstance::setSize(Vector3 newSize)
+void PartInstance::setSize(Vector3 newSize)
 {
 	int minsize = 1;
 	int maxsize = 512;
@@ -71,37 +72,37 @@ void PhysicalInstance::setSize(Vector3 newSize)
 
 
 }
-Vector3 PhysicalInstance::getSize()
+Vector3 PartInstance::getSize()
 {
 	return size;
 }
-Vector3 PhysicalInstance::getPosition()
+Vector3 PartInstance::getPosition()
 {
 	return position;
 }
-void PhysicalInstance::setPosition(Vector3 pos)
+void PartInstance::setPosition(Vector3 pos)
 {
 	position = pos;
 	cFrame = CoordinateFrame(pos);
 	changed = true;
 }
-CoordinateFrame PhysicalInstance::getCFrame()
+CoordinateFrame PartInstance::getCFrame()
 {
 	return cFrame;
 }
-void PhysicalInstance::setCFrame(CoordinateFrame coordinateFrame)
+void PartInstance::setCFrame(CoordinateFrame coordinateFrame)
 {
 	cFrame = coordinateFrame;
 	position = coordinateFrame.translation;
 	changed = true;
 }
 
-CoordinateFrame PhysicalInstance::getCFrameRenderBased()
+CoordinateFrame PartInstance::getCFrameRenderBased()
 {
 	return CoordinateFrame(getCFrame().rotation,Vector3(getCFrame().translation.x/2, getCFrame().translation.y/2, getCFrame().translation.z/2));
 }
 
-Box PhysicalInstance::getBox()
+Box PartInstance::getBox()
 {
 	if(changed)
 	{
@@ -132,12 +133,12 @@ Box PhysicalInstance::getBox()
 	return itemBox;
 }
 
-bool PhysicalInstance::collides(Box box)
+bool PartInstance::collides(Box box)
 {
 	return CollisionDetection::fixedSolidBoxIntersectsFixedSolidBox(getBox(), box);
 }
 
-void PhysicalInstance::render(RenderDevice* rd)
+void PartInstance::render(RenderDevice* rd)
 {
 	if(changed)
 		Box box = getBox();
@@ -211,14 +212,14 @@ void PhysicalInstance::render(RenderDevice* rd)
 	
 }
 
-PhysicalInstance::~PhysicalInstance(void)
+PartInstance::~PartInstance(void)
 {
 }
 char pto[512];
 char pto2[512];
 #include <sstream>
 
-void PhysicalInstance::PropUpdate(LPPROPGRIDITEM &item)
+void PartInstance::PropUpdate(LPPROPGRIDITEM &item)
 {
 	if(strcmp(item->lpszPropName, "Color3") == 0)
 	{
@@ -285,7 +286,7 @@ void PhysicalInstance::PropUpdate(LPPROPGRIDITEM &item)
 	else Instance::PropUpdate(item);
 }
 
-std::vector<PROPGRIDITEM> PhysicalInstance::getProperties()
+std::vector<PROPGRIDITEM> PartInstance::getProperties()
 {
 	std::vector<PROPGRIDITEM> properties = Instance::getProperties();
 	
diff --git a/PhysicalInstance.h b/PartInstance.h
similarity index 78%
rename from PhysicalInstance.h
rename to PartInstance.h
index 70d89b2..ccdbd45 100644
--- a/PhysicalInstance.h
+++ b/PartInstance.h
@@ -1,15 +1,14 @@
 #pragma once
-#include "instance.h"
+#include "PVInstance.h"
 #include "Enum.h"
 
-class PhysicalInstance :
-	public Instance
+class PartInstance : public PVInstance
 {
 public:
-	PhysicalInstance(void);
-	PhysicalInstance(const PhysicalInstance &oinst);
-	Instance* clone() const { return new PhysicalInstance(*this); }
-	~PhysicalInstance(void);
+	PartInstance(void);
+	PartInstance(const PartInstance &oinst);
+	Instance* clone() const { return new PartInstance(*this); }
+	~PartInstance(void);
 	virtual void render(RenderDevice*);
 	Vector3 velocity;
 	Enum::SurfaceType::Value top;
diff --git a/TextButtonInstance.cpp b/TextButtonInstance.cpp
index 6c8cfd1..5a9b472 100644
--- a/TextButtonInstance.cpp
+++ b/TextButtonInstance.cpp
@@ -58,6 +58,10 @@ void TextButtonInstance::setAllColorsSame()
 	textOutlineColorDn = textOutlineColor;
 	boxColorDn = boxColor;
 	boxOutlineColorDn = boxOutlineColor;
+	textColorDis = textColor;
+	textOutlineColorDis = textOutlineColor;
+	boxColorDis = boxColor;
+	boxOutlineColorDis = boxOutlineColor;
 }
 
 TextButtonInstance::~TextButtonInstance(void)
@@ -80,7 +84,12 @@ void TextButtonInstance::drawObj(RenderDevice* rd, Vector2 mousePos, bool mouseD
 		point2 = Vector3(boxEnd.x, boxEnd.y,0);
 	}
 	Vector2 RelativeTo = Vector2(point1.x + fontLocationRelativeTo.x, point1.y + fontLocationRelativeTo.y);
-	if(mouseInArea(point1.x, point1.y, point2.x, point2.y, mousePos.x, mousePos.y) && mouseDown)
+	if(disabled)
+	{
+		Draw::box(Box(point1, point2), rd, boxColorDis, boxOutlineColorDis);
+		font->draw2D(rd, title, RelativeTo, textSize, textColorDis, textOutlineColorDis);
+	}
+	else if(mouseInArea(point1.x, point1.y, point2.x, point2.y, mousePos.x, mousePos.y) && mouseDown)
 	{
 		Draw::box(Box(point1, point2), rd, boxColorDn, boxOutlineColorDn);
 		font->draw2D(rd, title, RelativeTo, textSize, textColorDn, textOutlineColorDn);
diff --git a/TextButtonInstance.h b/TextButtonInstance.h
index 2f8823c..cc53f7f 100644
--- a/TextButtonInstance.h
+++ b/TextButtonInstance.h
@@ -21,6 +21,10 @@ public:
 	Color4 textOutlineColorDn;
 	Color4 boxColorDn;
 	Color4 boxOutlineColorDn;
+	Color4 textColorDis;
+	Color4 textOutlineColorDis;
+	Color4 boxColorDis;
+	Color4 boxOutlineColorDis;
 	bool centeredWithinBox;
 	std::string title;
 	G3D::GFontRef font;
diff --git a/WorkspaceInstance.cpp b/WorkspaceInstance.cpp
index 2f4d463..8c62729 100644
--- a/WorkspaceInstance.cpp
+++ b/WorkspaceInstance.cpp
@@ -3,11 +3,12 @@
 
 WorkspaceInstance::WorkspaceInstance(void)
 {
-	Instance::Instance();
+	GroupInstance::GroupInstance();
 	name = "Instance";
 	className = "Level";
 	timer = 60.0F;
 	score = 0;
+	canDelete = false;
 }
 
 WorkspaceInstance::~WorkspaceInstance(void)
diff --git a/WorkspaceInstance.h b/WorkspaceInstance.h
index 26a5bc4..1dc0517 100644
--- a/WorkspaceInstance.h
+++ b/WorkspaceInstance.h
@@ -1,13 +1,12 @@
 #pragma once
-#include "instance.h"
+#include "GroupInstance.h"
 
 class WorkspaceInstance :
-	public Instance
+	public GroupInstance
 {
 public:
 	float timer;
 	int score;
 	WorkspaceInstance(void);
 	~WorkspaceInstance(void);
-	
 };
diff --git a/main.cpp b/main.cpp
index e07b3ee..c808215 100644
--- a/main.cpp
+++ b/main.cpp
@@ -20,7 +20,7 @@
 #include <iomanip>
 #include "Instance.h"
 #include "resource.h"
-#include "PhysicalInstance.h"
+#include "PartInstance.h"
 #include "TextButtonInstance.h"
 #include "ImageButtonInstance.h"
 #include "DataModelInstance.h"
@@ -192,9 +192,9 @@ std::string Convert (float number){
 }
 
 
-PhysicalInstance* makePart()
+PartInstance* makePart()
 {
-	PhysicalInstance* part = new PhysicalInstance();
+	PartInstance* part = new PartInstance();
 	return part;
 }
 
@@ -246,7 +246,14 @@ public:
 
 void GUDButtonListener::onButton1MouseClick(BaseButtonInstance* button)
 {
-	if(g_selectedInstances.size() > 0)
+	bool cont = false;
+	for(size_t i = 0; i < g_selectedInstances.size(); i++)
+		if(g_selectedInstances.at(i)->canDelete)
+		{
+			cont = true;	
+			break;
+		}
+	if(cont)
 	{
 		AudioPlayer::playSound(dingSound);
 		if(button->name == "Duplicate")
@@ -254,7 +261,7 @@ void GUDButtonListener::onButton1MouseClick(BaseButtonInstance* button)
 			std::vector<Instance*> newinst;
 			for(size_t i = 0; i < g_selectedInstances.size(); i++)
 			{
-				if(g_selectedInstances.at(i) != dataModel->getWorkspace())
+				if(g_selectedInstances.at(i)->canDelete)
 				{
 				Instance* tempinst = g_selectedInstances.at(i);
 				
@@ -283,7 +290,7 @@ void RotateButtonListener::onButton1MouseClick(BaseButtonInstance* button)
 	{
 		Instance* selectedInstance = g_selectedInstances.at(0);
 		AudioPlayer::playSound(clickSound);
-		if(PhysicalInstance* part = dynamic_cast<PhysicalInstance*>(selectedInstance))
+		if(PartInstance* part = dynamic_cast<PartInstance*>(selectedInstance))
 		{
 			if(button->name == "Tilt")
 				part->setCFrame(part->getCFrame()*Matrix3::fromEulerAnglesXYZ(0,0,toRadians(90)));
@@ -302,7 +309,7 @@ void deleteInstance()
 		size_t undeletable = 0;
 		while(g_selectedInstances.size() > undeletable)
 		{
-			if(g_selectedInstances.at(0) != dataModel && g_selectedInstances.at(0) != dataModel->getWorkspace())
+			if(g_selectedInstances.at(0)->canDelete)
 			{
 				AudioPlayer::playSound(GetFileInPath("/content/sounds/pageturn.wav"));
 				Instance* selectedInstance = g_selectedInstances.at(0);
@@ -503,7 +510,9 @@ void Demo::initGUI()
 	button->boxColor = Color4::clear();
 	button->textSize = 12;
 	button->title = "Group";
-	button->setAllColorsSame();
+	button->name = "Group";
+	button->setAllColorsSame();	
+	button->textColorDis = Color3(0.8F,0.8F,0.8F);
 	button->font = fntlighttrek;
 	button->fontLocationRelativeTo = Vector2(10, 0);
 	button->setParent(dataModel->getGuiRoot());
@@ -517,7 +526,9 @@ void Demo::initGUI()
 	button->boxColor = Color4::clear();
 	button->textSize = 12;
 	button->title = "UnGroup";
+	button->name = "UnGroup";
 	button->setAllColorsSame();
+	button->textColorDis = Color3(0.8F,0.8F,0.8F);
 	button->font = fntlighttrek;
 	button->fontLocationRelativeTo = Vector2(10, 0);
 	button->setParent(dataModel->getGuiRoot());
@@ -531,6 +542,7 @@ void Demo::initGUI()
 	button->textSize = 12;
 	button->title = "Duplicate";
 	button->setAllColorsSame();
+	button->textColorDis = Color3(0.8F,0.8F,0.8F);
 	button->font = fntlighttrek;
 	button->fontLocationRelativeTo = Vector2(10, 0);
 	button->setParent(dataModel->getGuiRoot());
@@ -710,7 +722,7 @@ void Demo::onInit()  {
 	initGUI();
 
 	
-	PhysicalInstance* test = makePart();
+	PartInstance* test = makePart();
 	test->setParent(dataModel->getWorkspace());
 	test->color = Color3(0.2F,0.3F,1);
 	test->setSize(Vector3(24,1,24));
@@ -838,14 +850,39 @@ std::vector<Instance*> Demo::getSelection()
 }
 void Demo::onSimulation(RealTime rdt, SimTime sdt, SimTime idt) {
 
-	Instance* obj = dataModel->getGuiRoot()->findFirstChild("Delete");
-		if(obj != NULL)
+	
+		
+		Instance * obj6 = dataModel->getGuiRoot()->findFirstChild("Delete");
+		Instance * obj = dataModel->getGuiRoot()->findFirstChild("Duplicate");
+		Instance * obj2 = dataModel->getGuiRoot()->findFirstChild("Group");
+		Instance * obj3 = dataModel->getGuiRoot()->findFirstChild("UnGroup");
+		Instance * obj4 = dataModel->getGuiRoot()->findFirstChild("Rotate");
+		Instance * obj5 = dataModel->getGuiRoot()->findFirstChild("Tilt");
+		if(obj != NULL && obj2 != NULL && obj3 != NULL && obj4 !=NULL && obj5 != NULL && obj6 != NULL)
 		{
-			ImageButtonInstance* button = (ImageButtonInstance*)obj;
-			if(g_selectedInstances.size() <= 0 || g_selectedInstances.at(0) == dataModel->getWorkspace())
-				button->disabled = true;
-			else
-				button->disabled = false;	
+			BaseButtonInstance* button = (BaseButtonInstance*)obj;
+			BaseButtonInstance* button2 = (BaseButtonInstance*)obj2;
+			BaseButtonInstance* button3 = (BaseButtonInstance*)obj3;
+			BaseButtonInstance* button4 = (BaseButtonInstance*)obj4;
+			BaseButtonInstance* button5 = (BaseButtonInstance*)obj5;
+			BaseButtonInstance* button6 = (BaseButtonInstance*)obj6;
+			button->disabled = true;
+			button2->disabled = true;
+			button3->disabled = true;
+			button4->disabled = true;
+			button5->disabled = true;
+			button6->disabled = true;
+			for(size_t i = 0; i < g_selectedInstances.size(); i++)
+				if(g_selectedInstances.at(i)->canDelete)
+				{
+					button->disabled = false;
+					button2->disabled = false;
+					button3->disabled = false;
+					button4->disabled = false;
+					button5->disabled = false;
+					button6->disabled = false;
+					break;
+				}
 		}
 
 
@@ -913,14 +950,14 @@ void Demo::onUserInput(UserInput* ui) {
 
 	if (GetHoldKeyState(VK_LBUTTON)) {
 		if (dragging) {
-			PhysicalInstance* part = NULL;
+			PartInstance* part = NULL;
 			if(g_selectedInstances.size() > 0)
-				part = (PhysicalInstance*) g_selectedInstances.at(0);
+				part = (PartInstance*) g_selectedInstances.at(0);
 		Ray dragRay = cameraController.getCamera()->worldRay(dataModel->mousex, dataModel->mousey, renderDevice->getViewport());
 		std::vector<Instance*> instances = dataModel->getWorkspace()->getAllChildren();
 		for(size_t i = 0; i < instances.size(); i++)
 			{
-				if(PhysicalInstance* moveTo = dynamic_cast<PhysicalInstance*>(instances.at(i)))
+				if(PartInstance* moveTo = dynamic_cast<PartInstance*>(instances.at(i)))
 				{
 					float __time = testRay.intersectionTime(moveTo->getBox());
 					float __nearest=std::numeric_limits<float>::infinity();
@@ -1162,7 +1199,7 @@ void Demo::onGraphics(RenderDevice* rd) {
 	{
 		for(size_t i = 0; i < g_selectedInstances.size(); i++)
 		{
-			if(PhysicalInstance* part = dynamic_cast<PhysicalInstance*>(g_selectedInstances.at(i)))
+			if(PartInstance* part = dynamic_cast<PartInstance*>(g_selectedInstances.at(i)))
 			{
 			Vector3 size = part->getSize();
 			Vector3 pos = part->getPosition();
@@ -1291,7 +1328,7 @@ void Demo::onMouseLeftPressed(HWND hwnd,int x,int y)
         bool objFound = false;
 		for(size_t i = 0; i < instances.size(); i++)
 		{
-			if(PhysicalInstance* test = dynamic_cast<PhysicalInstance*>(instances.at(i)))
+			if(PartInstance* test = dynamic_cast<PartInstance*>(instances.at(i)))
 			{
 				float time = testRay.intersectionTime(test->getBox());