diff --git a/document.cpp b/document.cpp
index 6ff4df1..d68b708 100644
--- a/document.cpp
+++ b/document.cpp
@@ -34,6 +34,7 @@ TeletextDocument::TeletextDocument()
 	m_undoStack = new QUndoStack(this);
 	m_cursorRow = 1;
 	m_cursorColumn = 0;
+	m_selectionCornerRow = m_selectionCornerColumn = -1;
 	m_selectionSubPage = nullptr;
 }
 
@@ -171,61 +172,114 @@ void TeletextDocument::setFastTextLinkPageNumberOnAllSubPages(int linkNumber, in
 		subPage->setFastTextLinkPageNumber(linkNumber, pageNumber);
 }
 
-void TeletextDocument::cursorUp()
+void TeletextDocument::cursorUp(bool shiftKey)
 {
+	if (shiftKey && !selectionActive())
+		setSelectionCorner(m_cursorRow, m_cursorColumn);
+
 	if (--m_cursorRow == 0)
 		m_cursorRow = 24;
-	cancelSelection();
+
+	if (shiftKey)
+		emit selectionMoved();
+	else
+		cancelSelection();
+
 	emit cursorMoved();
 }
 
-void TeletextDocument::cursorDown()
+void TeletextDocument::cursorDown(bool shiftKey)
 {
+	if (shiftKey && !selectionActive())
+		setSelectionCorner(m_cursorRow, m_cursorColumn);
+
 	if (++m_cursorRow == 25)
 		m_cursorRow = 1;
-	cancelSelection();
+
+	if (shiftKey)
+		emit selectionMoved();
+	else
+		cancelSelection();
+
 	emit cursorMoved();
 }
 
-void TeletextDocument::cursorLeft()
+void TeletextDocument::cursorLeft(bool shiftKey)
 {
+	if (shiftKey && !selectionActive())
+		setSelectionCorner(m_cursorRow, m_cursorColumn);
+
 	if (--m_cursorColumn == -1) {
 		m_cursorColumn = 39;
-		cursorUp();
+		cursorUp(shiftKey);
 	}
-	cancelSelection();
+
+	if (shiftKey)
+		emit selectionMoved();
+	else
+		cancelSelection();
+
 	emit cursorMoved();
 }
 
-void TeletextDocument::cursorRight()
+void TeletextDocument::cursorRight(bool shiftKey)
 {
+	if (shiftKey && !selectionActive())
+		setSelectionCorner(m_cursorRow, m_cursorColumn);
+
 	if (++m_cursorColumn == 40) {
 		m_cursorColumn = 0;
-		cursorDown();
+		cursorDown(shiftKey);
 	}
-	cancelSelection();
+
+	if (shiftKey)
+		emit selectionMoved();
+	else
+		cancelSelection();
+
 	emit cursorMoved();
 }
 
-void TeletextDocument::moveCursor(int cursorRow, int cursorColumn)
+void TeletextDocument::moveCursor(int cursorRow, int cursorColumn, bool selectionInProgress)
 {
+	if (selectionInProgress && !selectionActive())
+		setSelectionCorner(m_cursorRow, m_cursorColumn);
+
 	if (cursorRow != -1)
 		m_cursorRow = cursorRow;
 	if (cursorColumn != -1)
 		m_cursorColumn = cursorColumn;
-	cancelSelection();
+
+	if (selectionInProgress)
+		emit selectionMoved();
+	else
+		cancelSelection();
+
 	emit cursorMoved();
 }
 
+void TeletextDocument::setSelectionCorner(int row, int column)
+{
+	if (m_selectionCornerRow != row || m_selectionCornerColumn != column) {
+		m_selectionSubPage = currentSubPage();
+		m_selectionCornerRow = row;
+		m_selectionCornerColumn = column;
+
+//		emit selectionMoved();
+	}
+}
+
 void TeletextDocument::setSelection(int topRow, int leftColumn, int bottomRow, int rightColumn)
 {
-	if (m_selectionTopRow != topRow || m_selectionBottomRow != bottomRow || m_selectionLeftColumn != leftColumn || m_selectionRightColumn != rightColumn) {
+	if (selectionTopRow() != topRow || selectionBottomRow() != bottomRow || selectionLeftColumn() != leftColumn || selectionRightColumn() != rightColumn) {
 		m_selectionSubPage = currentSubPage();
-		m_selectionTopRow = topRow;
-		m_selectionBottomRow = bottomRow;
-		m_selectionLeftColumn = leftColumn;
-		m_selectionRightColumn = rightColumn;
+		m_selectionCornerRow = topRow;
+		m_cursorRow = bottomRow;
+		m_selectionCornerColumn = leftColumn;
+		m_cursorColumn = rightColumn;
+
 		emit selectionMoved();
+		emit cursorMoved();
 	}
 }
 
@@ -234,6 +288,7 @@ void TeletextDocument::cancelSelection()
 	if (m_selectionSubPage != nullptr) {
 		m_selectionSubPage = nullptr;
 		emit selectionMoved();
+		m_selectionCornerRow = m_selectionCornerColumn = -1;
 	}
 }
 
diff --git a/document.h b/document.h
index ee7f647..b98264c 100644
--- a/document.h
+++ b/document.h
@@ -64,18 +64,19 @@ public:
 	QUndoStack *undoStack() const { return m_undoStack; }
 	int cursorRow() const { return m_cursorRow; }
 	int cursorColumn() const { return m_cursorColumn; }
-	void cursorUp();
-	void cursorDown();
-	void cursorLeft();
-	void cursorRight();
-	void moveCursor(int, int);
-	int selectionTopRow() const { return m_selectionTopRow; }
-	int selectionBottomRow() const { return m_selectionBottomRow; }
-	int selectionLeftColumn() const { return m_selectionLeftColumn; }
-	int selectionRightColumn() const { return m_selectionRightColumn; }
-	int selectionWidth() const { return m_selectionRightColumn - m_selectionLeftColumn + 1; }
-	int selectionHeight() const { return m_selectionBottomRow - m_selectionTopRow + 1; }
+	void cursorUp(bool shiftKey=false);
+	void cursorDown(bool shiftKey=false);
+	void cursorLeft(bool shiftKey=false);
+	void cursorRight(bool shiftKey=false);
+	void moveCursor(int, int, bool selectionInProgress=false);
+	int selectionTopRow() const { return qMin(m_selectionCornerRow, m_cursorRow); }
+	int selectionBottomRow() const { return qMax(m_selectionCornerRow, m_cursorRow); }
+	int selectionLeftColumn() const { return qMin(m_selectionCornerColumn, m_cursorColumn); }
+	int selectionRightColumn() const { return qMax(m_selectionCornerColumn, m_cursorColumn); }
+	int selectionWidth() const { return selectionRightColumn() - selectionLeftColumn() + 1; }
+	int selectionHeight() const { return selectionBottomRow() - selectionTopRow() + 1; }
 	bool selectionActive() const { return m_selectionSubPage == currentSubPage(); }
+	void setSelectionCorner(int, int);
 	void setSelection(int, int, int, int);
 	void cancelSelection();
 	int levelRequired() const;
@@ -99,7 +100,7 @@ private:
 	std::vector<LevelOnePage *> m_subPages;
 	std::vector<LevelOnePage *> m_recycleSubPages;
 	QUndoStack *m_undoStack;
-	int m_cursorRow, m_cursorColumn, m_selectionTopRow, m_selectionBottomRow, m_selectionLeftColumn, m_selectionRightColumn;
+	int m_cursorRow, m_cursorColumn, m_selectionCornerRow, m_selectionCornerColumn;
 	LevelOnePage *m_selectionSubPage;
 };
 
diff --git a/mainwidget.cpp b/mainwidget.cpp
index 92ed73c..ec8a1f9 100644
--- a/mainwidget.cpp
+++ b/mainwidget.cpp
@@ -338,26 +338,27 @@ void TeletextWidget::keyPressEvent(QKeyEvent *event)
 			break;
 
 		case Qt::Key_Up:
-			m_teletextDocument->cursorUp();
+			m_teletextDocument->cursorUp(event->modifiers() & Qt::ShiftModifier);
 			break;
 		case Qt::Key_Down:
-			m_teletextDocument->cursorDown();
+			m_teletextDocument->cursorDown(event->modifiers() & Qt::ShiftModifier);
 			break;
 		case Qt::Key_Left:
-			m_teletextDocument->cursorLeft();
+			m_teletextDocument->cursorLeft(event->modifiers() & Qt::ShiftModifier);
 			break;
 		case Qt::Key_Right:
-			m_teletextDocument->cursorRight();
+			m_teletextDocument->cursorRight(event->modifiers() & Qt::ShiftModifier);
 			break;
 		case Qt::Key_Return:
 		case Qt::Key_Enter:
 			m_teletextDocument->cursorDown();
-			// fall through
-		case Qt::Key_Home:
 			m_teletextDocument->moveCursor(m_teletextDocument->cursorRow(), 0);
 			break;
+		case Qt::Key_Home:
+			m_teletextDocument->moveCursor(m_teletextDocument->cursorRow(), 0, event->modifiers() & Qt::ShiftModifier);
+			break;
 		case Qt::Key_End:
-			m_teletextDocument->moveCursor(m_teletextDocument->cursorRow(), 39);
+			m_teletextDocument->moveCursor(m_teletextDocument->cursorRow(), 39, event->modifiers() & Qt::ShiftModifier);
 			break;
 
 		case Qt::Key_PageUp:
@@ -416,25 +417,12 @@ void TeletextWidget::mouseMoveEvent(QMouseEvent *event)
 {
 	if (event->buttons() & Qt::LeftButton) {
 		QPair<int, int> position = mouseToRowAndColumn(event->pos());
-		if (m_selectionInProgress || position.first != m_teletextDocument->cursorRow() || position.second != m_teletextDocument->cursorColumn()) {
-			int topRow, bottomRow, leftColumn, rightColumn;
-
-			m_selectionInProgress = true;
-			if (m_teletextDocument->cursorRow() < position.first) {
-				topRow = m_teletextDocument->cursorRow();
-				bottomRow = position.first;
-			} else {
-				topRow = position.first;
-				bottomRow = m_teletextDocument->cursorRow();
+		if (position.first != m_teletextDocument->cursorRow() || position.second != m_teletextDocument->cursorColumn()) {
+			if (!m_selectionInProgress) {
+				m_selectionInProgress = true;
+				m_teletextDocument->setSelectionCorner(m_teletextDocument->cursorRow(), m_teletextDocument->cursorColumn());
 			}
-			if (m_teletextDocument->cursorColumn() < position.second) {
-				leftColumn = m_teletextDocument->cursorColumn();
-				rightColumn = position.second;
-			} else {
-				leftColumn = position.second;
-				rightColumn = m_teletextDocument->cursorColumn();
-			}
-			m_teletextDocument->setSelection(topRow, leftColumn, bottomRow, rightColumn);
+			m_teletextDocument->moveCursor(position.first, position.second, true);
 		}
 	}
 }