diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 95ba81a3..2532c600 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -4,6 +4,9 @@ A
 Añadidos títulos "Bibliotecas" y "Carpetas" a la barra de navegación
 Nuevos iconos para seleccionar la carpeta raíz, expandir y contraer todos.
 Botón para cambiar el puerto del servidor por el usuario.
+Ahora las columnas de la tabla de cómics pueden reordenarse
+Ahora YACReaderLibrary sólo permite una instancia ejecutandose.
+Columna leído añadida.
 
 6.2
 Nueva ventana de "bienvenida"
diff --git a/YACReaderLibrary/db/tableitem.h b/YACReaderLibrary/db/tableitem.h
index 847be8bc..56bdcc54 100644
--- a/YACReaderLibrary/db/tableitem.h
+++ b/YACReaderLibrary/db/tableitem.h
@@ -5,8 +5,9 @@
 #include <QVariant>
 
 //! [0]
-class TableItem
+class TableItem : public QObject
 {
+	Q_OBJECT
 public:
     TableItem(const QList<QVariant> &data);
     ~TableItem();
diff --git a/YACReaderLibrary/db/tablemodel.cpp b/YACReaderLibrary/db/tablemodel.cpp
index d24df72e..8da25187 100644
--- a/YACReaderLibrary/db/tablemodel.cpp
+++ b/YACReaderLibrary/db/tablemodel.cpp
@@ -68,6 +68,8 @@ QVariant TableModel::data(const QModelIndex &index, int role) const
     TableItem *item = static_cast<TableItem*>(index.internalPointer());
 	if(index.column() == HASH)
 		return QString::number(item->data(index.column()).toString().right(item->data(index.column()).toString().length()-40).toInt()/1024.0/1024.0,'f',2)+"Mb";
+	if(index.column() == READ)
+		return item->data(index.column()).toBool()?QVariant(tr("yes")):QVariant(tr("no"));
 	return item->data(index.column());
 }
 //! [3]
@@ -100,6 +102,8 @@ QVariant TableModel::headerData(int section, Qt::Orientation orientation,
 			return QVariant(QString(tr("Pages")));
 		case 7:
 			return QVariant(QString(tr("Size")));
+		case 8:
+			return QVariant(QString(tr("Read")));
 		}
 	}
 
@@ -357,6 +361,8 @@ QVector<bool> TableModel::setAllComicsRead(bool read)
 	db.close();
 	QSqlDatabase::removeDatabase(_databasePath);
 
+	emit dataChanged(index(0,READ),index(numComics-1,READ));
+
 	return readList;
 }
 
@@ -393,6 +399,8 @@ QVector<bool> TableModel::setComicsRead(QList<QModelIndex> list,bool read)
 	db.close();
 	QSqlDatabase::removeDatabase(_databasePath);
 
+	emit dataChanged(index(list.first().row(),READ),index(list.last().row(),READ));
+
 	return getReadList();
 }
 qint64 TableModel::asignNumbers(QList<QModelIndex> list,int startingNumber)
@@ -414,6 +422,9 @@ qint64 TableModel::asignNumbers(QList<QModelIndex> list,int startingNumber)
 	db.commit();
 	db.close();
 	QSqlDatabase::removeDatabase(_databasePath);
+
+	//emit dataChanged(index(list.first().row(),READ),index(list.last().row(),READ));
+
 	return idFirst;
 }
 QModelIndex TableModel::getIndexFromId(quint64 id)
diff --git a/YACReaderLibrary/library_window.cpp b/YACReaderLibrary/library_window.cpp
index 12c1f2c5..2ee2ffcf 100644
--- a/YACReaderLibrary/library_window.cpp
+++ b/YACReaderLibrary/library_window.cpp
@@ -95,6 +95,10 @@ void LibraryWindow::setupUI()
 	else
 		//if(settings->value(USE_OPEN_GL).toBool() == false)
 			showMaximized();
+	if(settings->contains(COMICS_VIEW_HEADERS))
+		comicView->horizontalHeader()->restoreState(settings->value(COMICS_VIEW_HEADERS).toByteArray());
+	/*if(settings->contains(COMICS_VIEW_HEADERS_GEOMETRY))
+		comicView->horizontalHeader()->restoreGeometry(settings->value(COMICS_VIEW_HEADERS_GEOMETRY).toByteArray());*/
 }
 
 void LibraryWindow::doLayout()
@@ -867,15 +871,16 @@ void LibraryWindow::loadCovers(const QModelIndex & mi)
 	dmCV->setupModelData(folderId,dm->getDatabase());
 	comicView->setModel(dmCV);
 	comicView->horizontalHeader()->setDefaultAlignment(Qt::AlignLeft);
+	comicView->horizontalHeader()->setMovable(true);
 	//TODO parametrizar la configuración de las columnas
-	for(int i = 4;i<comicView->horizontalHeader()->count();i++)
-		if(i!=7)
-			comicView->horizontalHeader()->hideSection(i);
+	for(int i = 4;i<comicView->horizontalHeader()->count()-2;i++)
+		comicView->horizontalHeader()->hideSection(i);
 
 
 	//debido a un bug, qt4 no es capaz de ajustar el ancho teniendo en cuenta todas la filas (no sólo las visibles)
 	//así que se ecala la primera vez y después se deja el control al usuario.
-	comicView->resizeColumnsToContents();
+	if(!settings->contains(COMICS_VIEW_HEADERS))
+		comicView->resizeColumnsToContents();
 	comicView->horizontalHeader()->setStretchLastSection(true);
 
 	QStringList paths = dmCV->getPaths(currentPath());
@@ -1399,6 +1404,8 @@ void LibraryWindow::showImportComicsInfo()
 void LibraryWindow::closeEvent ( QCloseEvent * event )
 {
 	settings->setValue(MAIN_WINDOW_GEOMETRY, saveGeometry());
+	settings->setValue(COMICS_VIEW_HEADERS,comicView->horizontalHeader()->saveState());
+	//settings->setValue(COMICS_VIEW_HEADERS_GEOMETRY,comicView->horizontalHeader()->saveGeometry());
 }
 
 void LibraryWindow::showNoLibrariesWidget()
diff --git a/common/yacreader_global.h b/common/yacreader_global.h
index 49b7f9b9..cf9072df 100644
--- a/common/yacreader_global.h
+++ b/common/yacreader_global.h
@@ -45,9 +45,12 @@
 
 #define MAIN_WINDOW_GEOMETRY "MAIN_WINDOW_GEOMETRY"
 #define MAIN_WINDOW_STATE "MAIN_WINDOW_STATE"
+#define COMICS_VIEW_HEADERS "COMICS_VIEW_HEADERS"
+#define COMICS_VIEW_HEADERS_GEOMETRY "COMICS_VIEW_HEADERS_GEOMETRY"
 
 #define YACREADERLIBRARY_GUID "ea343ff3-2005-4865-b212-7fa7c43999b8"
 
+
  enum FlowType
   {
     CoverFlowLike=0,