diff --git a/src/gui/SubWindow.cpp b/src/gui/SubWindow.cpp
index 27fda0a1a76..9480d1dc6e1 100644
--- a/src/gui/SubWindow.cpp
+++ b/src/gui/SubWindow.cpp
@@ -39,18 +39,18 @@
 
 void SubWindow::closeAllButThisEmit()
 {
+	// trigger signal sender to send a close event to all elements
 	emit SignalSender::getInstance()->closeAllButThis(this);
 }
 
-
 void SubWindow::closeAllButThisRecive(SubWindow* source)
 {
+	// check if source of signal is equal to the current window
 	if (source != this) {
 		emit closeSignal();
 	}
 }
 
-
 SubWindow::SubWindow( QWidget *parent, Qt::WindowFlags windowFlags ) :
 	QMdiSubWindow( parent, windowFlags ),
 	m_buttonSize( 17, 17 ),
@@ -115,8 +115,9 @@ SubWindow::SubWindow( QWidget *parent, Qt::WindowFlags windowFlags ) :
 	m_closeAllAction = new QAction();
 	m_closeAllAction->setText("Close all");
 	m_closeAllAction->setShortcut(QKeySequence(Qt::CTRL + Qt::SHIFT + Qt::Key_W));
-	// connect action to signal
+	// connect action to SignalSender
 	connect(m_closeAllAction, SIGNAL(triggered()), SignalSender::getInstance(), SLOT(closeAll()));
+	// connect SignalSender to close action
 	connect(SignalSender::getInstance(), SIGNAL(closeAllSignal()), this, SLOT(close()));
 	// add action to subwindow to capture keypress
 	addAction(m_closeAllAction);
@@ -127,10 +128,11 @@ SubWindow::SubWindow( QWidget *parent, Qt::WindowFlags windowFlags ) :
 	m_closeAllButThisAction = new QAction();
 	m_closeAllButThisAction->setText("Close all but this");
 	m_closeAllButThisAction->setShortcut(QKeySequence(Qt::CTRL + Qt::SHIFT + Qt::Key_Q));
-	// connect action to signal
+	// connect action to signal emit
 	connect(m_closeAllButThisAction, SIGNAL(triggered()), this, SLOT(closeAllButThisEmit()));
-	//connect(m_closeAllButThisAction, SIGNAL(triggered()), SignalSender::getInstance(), SLOT(closeAllButThis(this)));
+	// connect SignalSender to signal recive
 	connect(SignalSender::getInstance(), SIGNAL(closeAllButThisSignal(SubWindow*)), this, SLOT(closeAllButThisRecive(SubWindow*)));
+	// connect signal to close action
 	connect(this, SIGNAL(closeSignal()), this, SLOT(close()));
 	// add action to subwindow to capture keypress
 	addAction(m_closeAllButThisAction);