diff --git a/Source/Ember/Affine2D.h b/Source/Ember/Affine2D.h
index a96f6c6..4960e8c 100644
--- a/Source/Ember/Affine2D.h
+++ b/Source/Ember/Affine2D.h
@@ -87,6 +87,7 @@ public:
 	m4T ToMat4ColMajor(bool center = false) const;
 	m4T ToMat4RowMajor(bool center = false) const;
 
+	//Note that returning a copy is actually faster than a const ref&.
 	T A() const;
 	T B() const;
 	T C() const;
diff --git a/Source/Ember/Palette.h b/Source/Ember/Palette.h
index ea3f78b..f339649 100644
--- a/Source/Ember/Palette.h
+++ b/Source/Ember/Palette.h
@@ -578,7 +578,7 @@ public:
 
 	int m_Index;//Index in the xml palette file of this palette, use -1 for random.
 	string m_Name;//Name of this palette.
-	string m_Filename;//Name of the parent file this palette came from, can be empty.
+	shared_ptr<string> m_Filename;//Name of the parent file this palette came from, can be empty.
 	vector<v4T> m_Entries;//Storage for the color values.
 };
 }
diff --git a/Source/Ember/PaletteList.h b/Source/Ember/PaletteList.h
index 1fbd65f..37070e5 100644
--- a/Source/Ember/PaletteList.h
+++ b/Source/Ember/PaletteList.h
@@ -51,11 +51,12 @@ public:
 
 				if (doc != nullptr)
 				{
-					xmlNode* rootNode = xmlDocGetRootElement(doc);
+					auto rootNode = xmlDocGetRootElement(doc);
+					auto pfilename = shared_ptr<string>(new string(filename));
 
 					palettes.clear();
 					palettes.reserve(buf.size() / 2048);//Roughly what it takes per palette.
-					ParsePalettes(rootNode, filename, palettes);
+					ParsePalettes(rootNode, pfilename, palettes);
 					xmlFreeDoc(doc);
 					added = true;
 				}
@@ -226,7 +227,7 @@ private:
 	/// <param name="node">The parent note of all palettes in the Xml file.</param>
 	/// <param name="filename">The name of the Xml file.</param>
 	/// <param name="palettes">The vector to store the paresed palettes associated with this file in.</param>
-	void ParsePalettes(xmlNode* node, const string& filename, vector<Palette<T>>& palettes)
+	void ParsePalettes(xmlNode* node, const shared_ptr<string>& filename, vector<Palette<T>>& palettes)
 	{
 		bool hexError = false;
 		char* val;
diff --git a/Source/EmberCL/RendererCL.cpp b/Source/EmberCL/RendererCL.cpp
index 4aa0e2a..ca663d3 100644
--- a/Source/EmberCL/RendererCL.cpp
+++ b/Source/EmberCL/RendererCL.cpp
@@ -1475,18 +1475,23 @@ CarToRasCL<T> RendererCL<T>::ConvertCarToRas(const CarToRas<T>& carToRas)
 
 /// <summary>
 /// Fill seeds buffer which gets passed to the iteration kernel.
+/// The range of each seed will be spaced to ensure no duplicates are added.
 /// Note, WriteBuffer() must be called after this to actually copy the
 /// data from the host to the device.
 /// </summary>
 template <typename T>
 void RendererCL<T>::FillSeeds()
 {
+	double start, delta = std::floor((double)std::numeric_limits<uint>::max() / (IterGridKernelCount() * 2));
 	m_Seeds.resize(IterGridKernelCount());
+	start = delta;
 
 	for (auto& seed : m_Seeds)
 	{
-		seed.x = m_Rand[0].Rand();
-		seed.y = m_Rand[0].Rand();
+		seed.x = (uint)m_Rand[0].Frand<double>(start, start + delta);
+		start += delta;
+		seed.y = (uint)m_Rand[0].Frand<double>(start, start + delta);
+		start += delta;
 	}
 }
 
diff --git a/Source/Fractorium/Fractorium.h b/Source/Fractorium/Fractorium.h
index 8d99d89..f4d8d51 100644
--- a/Source/Fractorium/Fractorium.h
+++ b/Source/Fractorium/Fractorium.h
@@ -121,6 +121,8 @@ public slots:
 	void OnActionCopyAllXml(bool checked);
 	void OnActionPasteXmlAppend(bool checked);
 	void OnActionPasteXmlOver(bool checked);
+	void OnActionCopySelectedXforms(bool checked);
+	void OnActionPasteSelectedXforms(bool checked);
 
 	void OnActionAddReflectiveSymmetry(bool checked);//Tools.
 	void OnActionAddRotationalSymmetry(bool checked);
diff --git a/Source/Fractorium/Fractorium.ui b/Source/Fractorium/Fractorium.ui
index c7f0580..12e5630 100644
--- a/Source/Fractorium/Fractorium.ui
+++ b/Source/Fractorium/Fractorium.ui
@@ -170,6 +170,9 @@
     <addaction name="ActionCopyAllXml"/>
     <addaction name="ActionPasteXmlAppend"/>
     <addaction name="ActionPasteXmlOver"/>
+    <addaction name="separator"/>
+    <addaction name="ActionCopySelectedXforms"/>
+    <addaction name="ActionPasteSelectedXforms"/>
    </widget>
    <addaction name="MenuFile"/>
    <addaction name="MenuEdit"/>
@@ -6104,7 +6107,7 @@ SpinBox
      <normaloff>:/Fractorium/Icons/page_paste.png</normaloff>:/Fractorium/Icons/page_paste.png</iconset>
    </property>
    <property name="text">
-    <string>Paste Xml &amp;Append</string>
+    <string>Paste Xml A&amp;ppend</string>
    </property>
    <property name="shortcut">
     <string>Ctrl+V</string>
@@ -6139,6 +6142,28 @@ SpinBox
     <string>Fl&amp;ip</string>
    </property>
   </action>
+  <action name="ActionCopySelectedXforms">
+   <property name="text">
+    <string>Copy Selected &amp;Xforms</string>
+   </property>
+   <property name="toolTip">
+    <string>Copy selected xforms to the clipboard</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+Q</string>
+   </property>
+  </action>
+  <action name="ActionPasteSelectedXforms">
+   <property name="text">
+    <string>Paste Selected X&amp;forms</string>
+   </property>
+   <property name="toolTip">
+    <string>Paste copied xforms into the current flame</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+W</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <customwidgets>
diff --git a/Source/Fractorium/FractoriumEmberController.h b/Source/Fractorium/FractoriumEmberController.h
index 32653b6..5ac75de 100644
--- a/Source/Fractorium/FractoriumEmberController.h
+++ b/Source/Fractorium/FractoriumEmberController.h
@@ -94,6 +94,8 @@ public:
 	virtual void CopyAllXml() { }
 	virtual void PasteXmlAppend() { }
 	virtual void PasteXmlOver() { }
+	virtual void CopySelectedXforms() { }
+	virtual void PasteSelectedXforms() { }
 	virtual void AddReflectiveSymmetry() { }//Tools.
 	virtual void AddRotationalSymmetry() { }
 	virtual void AddBothSymmetry() { }
@@ -323,6 +325,8 @@ public:
 	virtual void CopyAllXml() override;
 	virtual void PasteXmlAppend() override;
 	virtual void PasteXmlOver() override;
+	virtual void CopySelectedXforms() override;
+	virtual void PasteSelectedXforms() override;
 	virtual void AddReflectiveSymmetry() override;
 	virtual void AddRotationalSymmetry() override;
 	virtual void AddBothSymmetry() override;
@@ -477,6 +481,8 @@ private:
 	Ember<T> m_Ember;
 	EmberFile<T> m_EmberFile;
 	deque<Ember<T>> m_UndoList;
+	vector<Xform<T>> m_CopiedXforms;
+	Xform<T> m_CopiedFinalXform;
 	Palette<T> m_TempPalette;
 	PaletteList<T> m_PaletteList;
 	VariationList<T> m_VariationList;
diff --git a/Source/Fractorium/FractoriumMenus.cpp b/Source/Fractorium/FractoriumMenus.cpp
index bb86d20..0e80710 100644
--- a/Source/Fractorium/FractoriumMenus.cpp
+++ b/Source/Fractorium/FractoriumMenus.cpp
@@ -25,6 +25,9 @@ void Fractorium::InitMenusUI()
 	connect(ui.ActionCopyAllXml,	 SIGNAL(triggered(bool)), this, SLOT(OnActionCopyAllXml(bool)),		Qt::QueuedConnection);
 	connect(ui.ActionPasteXmlAppend, SIGNAL(triggered(bool)), this, SLOT(OnActionPasteXmlAppend(bool)),	Qt::QueuedConnection);
 	connect(ui.ActionPasteXmlOver,	 SIGNAL(triggered(bool)), this, SLOT(OnActionPasteXmlOver(bool)),	Qt::QueuedConnection);
+	connect(ui.ActionCopySelectedXforms, SIGNAL(triggered(bool)), this, SLOT(OnActionCopySelectedXforms(bool)), Qt::QueuedConnection);
+	connect(ui.ActionPasteSelectedXforms, SIGNAL(triggered(bool)), this, SLOT(OnActionPasteSelectedXforms(bool)), Qt::QueuedConnection);
+	ui.ActionPasteSelectedXforms->setEnabled(false);
 
 	//Tools menu.
 	connect(ui.ActionAddReflectiveSymmetry, SIGNAL(triggered(bool)), this, SLOT(OnActionAddReflectiveSymmetry(bool)), Qt::QueuedConnection);
@@ -609,6 +612,57 @@ void FractoriumEmberController<T>::PasteXmlOver()
 
 void Fractorium::OnActionPasteXmlOver(bool checked) { m_Controller->PasteXmlOver(); }
 
+/// <summary>
+/// Copy the selected xforms.
+/// Note this will also copy final if selected.
+/// If none selected, just copy current.
+/// </summary>
+template <typename T>
+void FractoriumEmberController<T>::CopySelectedXforms()
+{
+	m_CopiedXforms.clear();
+	m_CopiedFinalXform.Clear();
+
+	UpdateXform([&](Xform<T>* xform)
+	{
+		if (m_Ember.IsFinalXform(xform))
+			m_CopiedFinalXform = *xform;
+		else
+			m_CopiedXforms.push_back(*xform);
+	}, UPDATE_SELECTED, false);
+	m_Fractorium->ui.ActionPasteSelectedXforms->setEnabled(true);
+}
+
+void Fractorium::OnActionCopySelectedXforms(bool checked)
+{
+	m_Controller->CopySelectedXforms();
+}
+
+/// <summary>
+/// Paste the selected xforms.
+/// Note this will also paste/overwrite final if previously copied.
+/// Resets the rendering process.
+/// </summary>
+template <typename T>
+void FractoriumEmberController<T>::PasteSelectedXforms()
+{
+	Update([&]()
+	{
+		for (auto& it : m_CopiedXforms)
+			m_Ember.AddXform(it);
+
+		if (!m_CopiedFinalXform.Empty())
+			m_Ember.SetFinalXform(m_CopiedFinalXform);
+
+		FillXforms();
+	});
+}
+
+void Fractorium::OnActionPasteSelectedXforms(bool checked)
+{
+	m_Controller->PasteSelectedXforms();
+}
+
 /// <summary>
 /// Add reflective symmetry to the current ember.
 /// Resets the rendering process.
diff --git a/Source/Fractorium/FractoriumParams.cpp b/Source/Fractorium/FractoriumParams.cpp
index 9dca265..f434f14 100644
--- a/Source/Fractorium/FractoriumParams.cpp
+++ b/Source/Fractorium/FractoriumParams.cpp
@@ -562,7 +562,11 @@ void FractoriumEmberController<T>::FillParamTablesAndPalette()
 	//Use the ember's embedded palette, rather than one from the list, so assign it directly to the controls without applying adjustments.
 	//Normally, the temp palette is assigned whenever the user clicks on a palette cell. But since that is skipped here, must do it manually.
 	m_TempPalette = m_Ember.m_Palette;
-	m_Fractorium->SetPaletteFileComboIndex(m_Ember.m_Palette.m_Filename);
+	auto temp = m_Ember.m_Palette.m_Filename;
+	
+	if (temp.get())
+		m_Fractorium->SetPaletteFileComboIndex(*temp.get());
+
 	UpdateAdjustedPaletteGUI(m_Ember.m_Palette);//Setting the palette will trigger a full render.
 }