diff --git a/src/gui/game/GameController.cpp b/src/gui/game/GameController.cpp
index f3f5b6afc..572a5dec5 100644
--- a/src/gui/game/GameController.cpp
+++ b/src/gui/game/GameController.cpp
@@ -327,13 +327,13 @@ std::string GameController::GetSignText(int signID)
 	return gameModel->GetSimulation()->signs[signID].text;
 }
 
-void GameController::PlaceSave(ui::Point position)
+void GameController::PlaceSave(ui::Point position, bool includePressure)
 {
 	GameSave *placeSave = gameModel->GetPlaceSave();
 	if (placeSave)
 	{
 		HistorySnapshot();
-		if (!gameModel->GetSimulation()->Load(position.X, position.Y, placeSave))
+		if (!gameModel->GetSimulation()->Load(position.X, position.Y, placeSave, includePressure))
 		{
 			gameModel->SetPaused(placeSave->paused | gameModel->GetPaused());
 			Client::Ref().MergeStampAuthorInfo(placeSave->authors);
@@ -567,10 +567,10 @@ void GameController::ToolClick(int toolSelection, ui::Point point)
 	activeTool->Click(sim, cBrush, point);
 }
 
-std::string GameController::StampRegion(ui::Point point1, ui::Point point2)
+std::string GameController::StampRegion(ui::Point point1, ui::Point point2, bool includePressure)
 {
 	GameSave * newSave;
-	newSave = gameModel->GetSimulation()->Save(point1.X, point1.Y, point2.X, point2.Y);
+	newSave = gameModel->GetSimulation()->Save(point1.X, point1.Y, point2.X, point2.Y, includePressure);
 	if(newSave)
 	{
 		newSave->paused = gameModel->GetPaused();
@@ -586,10 +586,10 @@ std::string GameController::StampRegion(ui::Point point1, ui::Point point2)
 	}
 }
 
-void GameController::CopyRegion(ui::Point point1, ui::Point point2)
+void GameController::CopyRegion(ui::Point point1, ui::Point point2, bool includePressure)
 {
 	GameSave * newSave;
-	newSave = gameModel->GetSimulation()->Save(point1.X, point1.Y, point2.X, point2.Y);
+	newSave = gameModel->GetSimulation()->Save(point1.X, point1.Y, point2.X, point2.Y, includePressure);
 	if(newSave)
 	{
 		Json::Value clipboardInfo;
@@ -604,9 +604,9 @@ void GameController::CopyRegion(ui::Point point1, ui::Point point2)
 	}
 }
 
-void GameController::CutRegion(ui::Point point1, ui::Point point2)
+void GameController::CutRegion(ui::Point point1, ui::Point point2, bool includePressure)
 {
-	CopyRegion(point1, point2);
+	CopyRegion(point1, point2, includePressure);
 	gameModel->GetSimulation()->clear_area(point1.X, point1.Y, point2.X-point1.X, point2.Y-point1.Y);
 }
 
diff --git a/src/gui/game/GameController.h b/src/gui/game/GameController.h
index 23aaecf88..42df4f6f6 100644
--- a/src/gui/game/GameController.h
+++ b/src/gui/game/GameController.h
@@ -89,9 +89,9 @@ public:
 	void DrawRect(int toolSelection, ui::Point point1, ui::Point point2);
 	void DrawLine(int toolSelection, ui::Point point1, ui::Point point2);
 	void DrawFill(int toolSelection, ui::Point point);
-	std::string StampRegion(ui::Point point1, ui::Point point2);
-	void CopyRegion(ui::Point point1, ui::Point point2);
-	void CutRegion(ui::Point point1, ui::Point point2);
+	std::string StampRegion(ui::Point point1, ui::Point point2, bool includePressure);
+	void CopyRegion(ui::Point point1, ui::Point point2, bool includePressure);
+	void CutRegion(ui::Point point1, ui::Point point2, bool includePressure);
 	void Update();
 	void SetPaused(bool pauseState);
 	void SetPaused();
@@ -133,7 +133,7 @@ public:
 	void OpenStamps();
 	void OpenElementSearch();
 	void OpenColourPicker();
-	void PlaceSave(ui::Point position);
+	void PlaceSave(ui::Point position, bool includePressure);
 	void ClearSim();
 	void ReloadSim();
 	void Vote(int direction);
diff --git a/src/gui/game/GameView.cpp b/src/gui/game/GameView.cpp
index 3bcecbf69..1a94ca578 100644
--- a/src/gui/game/GameView.cpp
+++ b/src/gui/game/GameView.cpp
@@ -1253,7 +1253,7 @@ void GameView::OnMouseUp(int x, int y, unsigned button)
 						if (thumbY+(placeSaveThumb->Height) >= YRES)
 							thumbY = YRES-placeSaveThumb->Height;
 
-						c->PlaceSave(ui::Point(thumbX, thumbY));
+						c->PlaceSave(ui::Point(thumbX, thumbY), !shiftBehaviour);
 					}
 				}
 				else
@@ -1263,11 +1263,11 @@ void GameView::OnMouseUp(int x, int y, unsigned button)
 					int x1 = (selectPoint2.X<selectPoint1.X) ? selectPoint2.X : selectPoint1.X;
 					int y1 = (selectPoint2.Y<selectPoint1.Y) ? selectPoint2.Y : selectPoint1.Y;
 					if (selectMode ==SelectCopy)
-						c->CopyRegion(ui::Point(x1, y1), ui::Point(x2, y2));
+						c->CopyRegion(ui::Point(x1, y1), ui::Point(x2, y2), !shiftBehaviour);
 					else if (selectMode == SelectCut)
-						c->CutRegion(ui::Point(x1, y1), ui::Point(x2, y2));
+						c->CutRegion(ui::Point(x1, y1), ui::Point(x2, y2), !shiftBehaviour);
 					else if (selectMode == SelectStamp)
-						c->StampRegion(ui::Point(x1, y1), ui::Point(x2, y2));
+						c->StampRegion(ui::Point(x1, y1), ui::Point(x2, y2), !shiftBehaviour);
 				}
 			}
 			selectMode = SelectNone;
diff --git a/src/lua/LuaScriptInterface.cpp b/src/lua/LuaScriptInterface.cpp
index 31b53385a..48758c343 100644
--- a/src/lua/LuaScriptInterface.cpp
+++ b/src/lua/LuaScriptInterface.cpp
@@ -1680,17 +1680,19 @@ int LuaScriptInterface::simulation_saveStamp(lua_State * l)
 	int y = luaL_optint(l,2,0);
 	int w = luaL_optint(l,3,XRES-1);
 	int h = luaL_optint(l,4,YRES-1);
-	std::string name = luacon_controller->StampRegion(ui::Point(x, y), ui::Point(x+w, y+h));
+	int includePressure = luaL_optint(l,5,1);
+	std::string name = luacon_controller->StampRegion(ui::Point(x, y), ui::Point(x+w, y+h), includePressure);
 	lua_pushstring(l, name.c_str());
 	return 1;
 }
 
 int LuaScriptInterface::simulation_loadStamp(lua_State * l)
 {
-	int i = -1, x, y;
+	int i = -1;
 	SaveFile * tempfile = NULL;
-	x = luaL_optint(l,2,0);
-	y = luaL_optint(l,3,0);
+	int x = luaL_optint(l,2,0);
+	int y = luaL_optint(l,3,0);
+	int includePressure = luaL_optint(l,4,1);
 	if (lua_isstring(l, 1)) //Load from 10 char name, or full filename
 	{
 		const char * filename = luaL_optstring(l, 1, "");
@@ -1707,7 +1709,7 @@ int LuaScriptInterface::simulation_loadStamp(lua_State * l)
 
 	if (tempfile)
 	{
-		if (!luacon_sim->Load(x, y, tempfile->GetGameSave()))
+		if (!luacon_sim->Load(x, y, tempfile->GetGameSave(), includePressure))
 		{
 			//luacon_sim->sys_pause = (tempfile->GetGameSave()->paused | luacon_model->GetPaused())?1:0;
 			lua_pushinteger(l, 1);
diff --git a/src/simulation/Simulation.cpp b/src/simulation/Simulation.cpp
index d4fb9709a..53ec385c3 100644
--- a/src/simulation/Simulation.cpp
+++ b/src/simulation/Simulation.cpp
@@ -26,12 +26,12 @@
 #include "lua/LuaScriptHelper.h"
 #endif
 
-int Simulation::Load(GameSave * save)
+int Simulation::Load(GameSave * save, bool includePressure)
 {
-	return Load(0, 0, save);
+	return Load(0, 0, save, includePressure);
 }
 
-int Simulation::Load(int fullX, int fullY, GameSave * save)
+int Simulation::Load(int fullX, int fullY, GameSave * save, bool includePressure)
 {
 	int blockX, blockY, x, y, r;
 
@@ -207,11 +207,14 @@ int Simulation::Load(int fullX, int fullY, GameSave * save)
 				fvx[saveBlockY+blockY][saveBlockX+blockX] = save->fanVelX[saveBlockY][saveBlockX];
 				fvy[saveBlockY+blockY][saveBlockX+blockX] = save->fanVelY[saveBlockY][saveBlockX];
 			}
-			pv[saveBlockY+blockY][saveBlockX+blockX] = save->pressure[saveBlockY][saveBlockX];
-			vx[saveBlockY+blockY][saveBlockX+blockX] = save->velocityX[saveBlockY][saveBlockX];
-			vy[saveBlockY+blockY][saveBlockX+blockX] = save->velocityY[saveBlockY][saveBlockX];
-			if (save->hasAmbientHeat)
-				hv[saveBlockY+blockY][saveBlockX+blockX] = save->ambientHeat[saveBlockY][saveBlockX];
+			if (includePressure)
+			{
+				pv[saveBlockY+blockY][saveBlockX+blockX] = save->pressure[saveBlockY][saveBlockX];
+				vx[saveBlockY+blockY][saveBlockX+blockX] = save->velocityX[saveBlockY][saveBlockX];
+				vy[saveBlockY+blockY][saveBlockX+blockX] = save->velocityY[saveBlockY][saveBlockX];
+				if (save->hasAmbientHeat)
+					hv[saveBlockY+blockY][saveBlockX+blockX] = save->ambientHeat[saveBlockY][saveBlockX];
+			}
 		}
 	}
 
@@ -221,12 +224,12 @@ int Simulation::Load(int fullX, int fullY, GameSave * save)
 	return 0;
 }
 
-GameSave * Simulation::Save()
+GameSave * Simulation::Save(bool includePressure)
 {
-	return Save(0, 0, XRES-1, YRES-1);
+	return Save(0, 0, XRES-1, YRES-1, includePressure);
 }
 
-GameSave * Simulation::Save(int fullX, int fullY, int fullX2, int fullY2)
+GameSave * Simulation::Save(int fullX, int fullY, int fullX2, int fullY2, bool includePressure)
 {
 	int blockX, blockY, blockX2, blockY2, blockW, blockH;
 	//Normalise incoming coords
@@ -310,11 +313,14 @@ GameSave * Simulation::Save(int fullX, int fullY, int fullX2, int fullY2)
 				newSave->fanVelX[saveBlockY][saveBlockX] = fvx[saveBlockY+blockY][saveBlockX+blockX];
 				newSave->fanVelY[saveBlockY][saveBlockX] = fvy[saveBlockY+blockY][saveBlockX+blockX];
 			}
-			newSave->pressure[saveBlockY][saveBlockX] = pv[saveBlockY+blockY][saveBlockX+blockX];
-			newSave->velocityX[saveBlockY][saveBlockX] = vx[saveBlockY+blockY][saveBlockX+blockX];
-			newSave->velocityY[saveBlockY][saveBlockX] = vy[saveBlockY+blockY][saveBlockX+blockX];
-			newSave->ambientHeat[saveBlockY][saveBlockX] = hv[saveBlockY+blockY][saveBlockX+blockX];
-			newSave->hasAmbientHeat = true;
+			if (includePressure)
+			{
+				newSave->pressure[saveBlockY][saveBlockX] = pv[saveBlockY+blockY][saveBlockX+blockX];
+				newSave->velocityX[saveBlockY][saveBlockX] = vx[saveBlockY+blockY][saveBlockX+blockX];
+				newSave->velocityY[saveBlockY][saveBlockX] = vy[saveBlockY+blockY][saveBlockX+blockX];
+				newSave->ambientHeat[saveBlockY][saveBlockX] = hv[saveBlockY+blockY][saveBlockX+blockX];
+				newSave->hasAmbientHeat = true;
+			}
 		}
 	}
 
diff --git a/src/simulation/Simulation.h b/src/simulation/Simulation.h
index 193c48d38..84214e046 100644
--- a/src/simulation/Simulation.h
+++ b/src/simulation/Simulation.h
@@ -114,10 +114,10 @@ public:
 	int sandcolour;
 	int sandcolour_frame;
 
-	int Load(GameSave * save);
-	int Load(int x, int y, GameSave * save);
-	GameSave * Save();
-	GameSave * Save(int x1, int y1, int x2, int y2);
+	int Load(GameSave * save, bool includePressure = true);
+	int Load(int x, int y, GameSave * save, bool includePressure = true);
+	GameSave * Save(bool includePressure = true);
+	GameSave * Save(int x1, int y1, int x2, int y2, bool includePressure = true);
 	void SaveSimOptions(GameSave * gameSave);
 	SimulationSample GetSample(int x, int y);