diff --git a/libs/blockview/blockbase.h b/libs/blockview/blockbase.h
index 189f4ba..fe62f19 100644
--- a/libs/blockview/blockbase.h
+++ b/libs/blockview/blockbase.h
@@ -43,7 +43,7 @@ enum BlockviewItemData {
 	bvidMoveParent         , // bool  flag for move parent
 	bvidVisualizeSelection , // bool  flag for visualize selection
 	bvidItemSelection      , // bool  BlockItem selection
-	bvidInvalidItem        , // bool  item is NOT decor, ignore for function decors
+	bvidTmpItem            , // bool  item is temporary, ignore
 	bvidBlockDecor         , // bool  item is BlockItem decor
 	bvidDTHandle           , // bool
 	bvidCorrectMove        , // bool
diff --git a/libs/blockview/blockview.cpp b/libs/blockview/blockview.cpp
index fd8411b..499688c 100644
--- a/libs/blockview/blockview.cpp
+++ b/libs/blockview/blockview.cpp
@@ -173,6 +173,7 @@ bool BlockView::eventFilter(QObject * o, QEvent * e) {
 		case QEvent::GraphicsSceneMouseDoubleClick:
 			mil = scene_->items(scene_point);
 			foreach (QGraphicsItem * i, mil) {
+				if (i->data(bvidTmpItem).toBool()) continue;
 				if (i->data(bvidType).toInt() == bvitBlock) {
 					//emit blockDoubleClicked((BlockItem * )i);
 					QMetaObject::invokeMethod(this, "blockDoubleClicked", Qt::QueuedConnection, Q_ARG(BlockItem * , (BlockItem*)i));
@@ -208,7 +209,7 @@ bool BlockView::eventFilter(QObject * o, QEvent * e) {
 			break;*/
 		case QEvent::GraphicsSceneMousePress:
 			if (mm_ci != 0) {
-				if (mm_ci->data(bvidInvalidItem).toBool()) {
+				if (mm_ci->data(bvidTmpItem).toBool()) {
 					mm_ci = 0;
 					break;
 				}
@@ -274,7 +275,7 @@ bool BlockView::eventFilter(QObject * o, QEvent * e) {
 			while (!mil.isEmpty()) {
 				mm_ci = mil.front();
 				if (mm_ci->data(bvidDTHandle).toBool()) return QGraphicsView::eventFilter(o, e);
-				if (mm_ci->data(bvidInvalidItem).toBool() || mm_ci->data(bvidItemSelection).toBool()) {
+				if (mm_ci->data(bvidTmpItem).toBool() || mm_ci->data(bvidItemSelection).toBool()) {
 					mil.pop_front();
 				} else break;
 			}
@@ -361,7 +362,7 @@ bool BlockView::eventFilter(QObject * o, QEvent * e) {
 				return false;
 			}
 			if (mm_ci)
-				if (mm_ci->data(bvidInvalidItem).toBool()) {
+				if (mm_ci->data(bvidTmpItem).toBool()) {
 					mm_ci = 0;
 					break;
 				}
@@ -408,7 +409,7 @@ bool BlockView::eventFilter(QObject * o, QEvent * e) {
 					if (fmm_drag) {
 						fmm_drag = false;
 						if (mm_ci) {
-							if (mm_ci->data(bvidType).toInt() == bvitBlock) {
+							if ((mm_ci->data(bvidType).toInt() == bvitBlock)  && !mm_ci->data(bvidTmpItem).toBool()) {
 								if (!mm_ci->isSelected() && sel_items.isEmpty()) {
 									clearSelection();
 									mm_ci->setSelected(true);
@@ -424,7 +425,7 @@ bool BlockView::eventFilter(QObject * o, QEvent * e) {
 						deleteCopyTemp();
 						QList<BlockItem * > bi;
 						foreach (QGraphicsItem * i, sel_items) {
-							if (i->data(bvidType).toInt() == bvitBlock) {
+							if ((i->data(bvidType).toInt() == bvitBlock) && !i->data(bvidTmpItem).toBool()) {
 								//qDebug() << "copy";
 								bi << qgraphicsitem_cast<BlockItem*>(i);
 								BlockItem * ti = bi.back()->copy();
@@ -528,7 +529,7 @@ bool BlockView::eventFilter(QObject * o, QEvent * e) {
 				return true;
 			}
 			if (mm_ci)
-				if (mm_ci->data(bvidInvalidItem).toBool()) {
+				if (mm_ci->data(bvidTmpItem).toBool()) {
 					mm_ci = 0;
 					break;
 				}
@@ -540,7 +541,7 @@ bool BlockView::eventFilter(QObject * o, QEvent * e) {
 					QList<BlockItem*> ci;
 					QList<BlockBusItem*> bi;
 					foreach (QGraphicsItem * b, sel_items)
-						if (b->data(bvidType).toInt() == bvitBlock) {
+						if ((b->data(bvidType).toInt() == bvitBlock) && !b->data(bvidTmpItem).toBool()) {
 							ci << qgraphicsitem_cast<BlockItem*>(b);
 							ai << qgraphicsitem_cast<QGraphicsItem*>(b);
 						}
@@ -999,7 +1000,7 @@ QList<BlockBusItem * > BlockView::buses() const {
 	QList<BlockBusItem * > ret;
 	QList<QGraphicsItem*> gi = scene_->items();
 	foreach (QGraphicsItem * i, gi)
-		if (i->data(bvidType).toInt() == bvitBus)
+		if ((i->data(bvidType).toInt() == bvitBus) && !i->data(bvidTmpItem).toBool())
 			if (!copy_buses.contains((BlockBusItem*)i))
 				ret << qgraphicsitem_cast<BlockBusItem*>(i);
 	return ret;
@@ -1028,7 +1029,7 @@ QList<BlockItem * > BlockView::blocks() const {
 	QList<BlockItem * > ret;
 	QList<QGraphicsItem*> gi = scene_->items();
 	foreach (QGraphicsItem * i, gi)
-		if (i->data(bvidType).toInt() == bvitBlock)
+		if ((i->data(bvidType).toInt() == bvitBlock) && !i->data(bvidTmpItem).toBool())
 			ret << qgraphicsitem_cast<BlockItem*>(i);
 	return ret;
 }
@@ -1037,7 +1038,7 @@ QList<BlockItem * > BlockView::blocks() const {
 QList<QGraphicsItem * > BlockView::decors() const {
 	QList<QGraphicsItem*> ret, gi = scene_->items();
 	foreach (QGraphicsItem * i, gi)
-		if ((i->data(bvidType).toInt() == bvitDecor) && !i->data(bvidInvalidItem).toBool() && !i->data(bvidItemSelection).toBool() && (i->parentItem() == 0)
+		if ((i->data(bvidType).toInt() == bvitDecor) && !i->data(bvidTmpItem).toBool() && !i->data(bvidItemSelection).toBool() && (i->parentItem() == 0)
 			&& (i != &sel_rect) && (i != &tmp_bus) && !tmp_buses.contains((BlockBusItem*)i))
 			ret << i;
 	return ret;
@@ -1192,7 +1193,7 @@ QRectF BlockView::itemsBoundingRect() const {
 	QRectF ret;
 	foreach (QGraphicsItem * i, gi)
 		if (i->isVisible() && (i != &tmp_bus) && !tmp_buses.contains((BlockBusItem*)i)) {
-			if (!(i->data(bvidItemSelection).toBool()) && !i->data(bvidInvalidItem).toBool()) {
+			if (!(i->data(bvidItemSelection).toBool()) && !i->data(bvidTmpItem).toBool()) {
 				QRectF br = i->mapRectToScene(i->boundingRect());
 				if (br.width() <= 1 || br.height() <= 1) continue;
 				if (f) ret = br;
@@ -1665,7 +1666,7 @@ QList<BlockItem * > BlockView::selectedBlocks() const {
 	QList<BlockItem * > ret;
 	QList<QGraphicsItem * > sil = scene()->selectedItems();
 	foreach (QGraphicsItem * b, sil)
-		if (b->data(bvidType).toInt() == bvitBlock)
+		if ((b->data(bvidType).toInt() == bvitBlock) && !b->data(bvidTmpItem).toBool())
 			ret << qgraphicsitem_cast<BlockItem*>(b);
 	return ret;
 }
@@ -2070,6 +2071,7 @@ void BlockView::removeSelected() {
 		if (i->connectedBlocks().isEmpty())
 			dbuses << i;
 	foreach (QGraphicsItem * i, gi) {
+		if (i->data(bvidTmpItem).toBool()) continue;
 		if (i->data(bvidType).toInt() == bvitBlock)
 			ai << qgraphicsitem_cast<QGraphicsItem*>(i);
 		if ((i->data(bvidType).toInt() == bvitBlock) || (i->data(bvidType).toInt() == bvitBus) || (i->data(bvidType).toInt() == bvitDecor)) {
@@ -2095,10 +2097,11 @@ void BlockView::removeAll() {
 	QList<QGraphicsItem*> gi = scene_->items(), ai;
 	blockSignals(true);
 	foreach (QGraphicsItem * i, gi) {
+		if (i->data(bvidTmpItem).toBool()) continue;
 		if (i->data(bvidType).toInt() == bvitBlock)
 			ai << qgraphicsitem_cast<QGraphicsItem*>(i);
 		if ((i->data(bvidType).toInt() == bvitBlock) || (i->data(bvidType).toInt() == bvitBus) || (i->data(bvidType).toInt() == bvitDecor)) {
-			if ((i != &sel_rect) && (i != &tmp_bus) && (i->parentItem() == 0) && !(i->data(bvidInvalidItem).toBool()) && !(i->data(bvidItemSelection).toBool())) {
+			if ((i != &sel_rect) && (i != &tmp_bus) && (i->parentItem() == 0) && !(i->data(bvidItemSelection).toBool())) {
 				//qDebug() << "delete" << i->data(1005).toInt();
 				scene_->sendEvent(i, new QGraphicsSceneEvent(QEvent::Close));
 				delete i;