diff --git a/modules/gui/src/file_loader.cc b/modules/gui/src/file_loader.cc
index 00e0fa3138883e7bae54b117f9378270e2f3c6e7..04274982807505208c95dfeda1d089e7fee247a0 100644
--- a/modules/gui/src/file_loader.cc
+++ b/modules/gui/src/file_loader.cc
@@ -103,7 +103,11 @@ void FileLoader::LoadObject(const QString& filename, const QString& selection)
         obj=FileLoader::TryLoadSurface(filename);
       }
       if (!obj) {
-        obj=FileLoader::NoHandlerFound(filename);
+        try{
+          obj=FileLoader::NoHandlerFound(filename);
+        } catch (io::IOFileAlreadyLoadedException&) {
+          return;
+        }
       }
       if (!obj){
         return;
@@ -135,6 +139,9 @@ gfx::GfxObjP FileLoader::NoHandlerFound(const QString& filename)
     if(dialog.GetEntityHandler()){
       return TryLoadEntity(filename, dialog.GetEntityHandler());
     }
+    if(dialog.GetSequenceHandler()){
+      return TryLoadAlignment(filename, dialog.GetSequenceHandler());
+    }
     if(dialog.GetSurfaceHandler()){
       return TryLoadSurface(filename,dialog.GetSurfaceHandler());
     }
diff --git a/modules/gui/src/file_type_dialog.cc b/modules/gui/src/file_type_dialog.cc
index cba2cba951411a1347fc962bda008fae828dbccf..ac9dd54ab797b3114ac7ab27d4cf409488f8108a 100644
--- a/modules/gui/src/file_type_dialog.cc
+++ b/modules/gui/src/file_type_dialog.cc
@@ -30,7 +30,7 @@
 namespace ost { namespace gui {
 
 FileTypeDialog::FileTypeDialog(const QString& file_name, QWidget* parent):
-  QDialog(parent),entity_handler_(), surf_handler_()
+  QDialog(parent),entity_handler_(),seq_handler_(), surf_handler_()
 #if OST_IMG_ENABLED
       ,map_handler_()
 #endif
@@ -66,6 +66,13 @@ FileTypeDialog::FileTypeDialog(const QString& file_name, QWidget* parent):
     this->AddRow(list_->rowCount(),entity_handler[i]->GetFormatName().c_str(),entity_handler[i]->GetFormatDescription().c_str(),handler);
   }
 
+  io::AlignmentIOFList alignment_handler = io::IOManager::Instance().GetAvailableAlignmentHandler();
+  for(unsigned int i = 0 ; i < alignment_handler.size() ; i++){
+    QVariant handler = QVariant();
+    handler.setValue(alignment_handler[i]);
+    this->AddRow(list_->rowCount(),alignment_handler[i]->GetFormatName().c_str(),alignment_handler[i]->GetFormatDescription().c_str(),handler);
+  }
+
 #if OST_IMG_ENABLED
   io::MapIOFList map_handler = io::IOManager::Instance().GetAvailableMapHandler();
   for(unsigned int i = 0 ; i < map_handler.size() ; i++){
@@ -106,6 +113,11 @@ void FileTypeDialog::accept(){
         entity_handler_ = ent_handler_fac->Create();
         break;
       }
+      io::SequenceIOHandlerFactoryBasePtr seq_handler_fac = variant.value<io::SequenceIOHandlerFactoryBasePtr>();
+      if(seq_handler_fac){
+        seq_handler_ = seq_handler_fac->Create();
+        break;
+      }
       io::SurfaceIOHandlerFactoryBasePtr surf_handler_fac = variant.value<io::SurfaceIOHandlerFactoryBasePtr>();
       if(surf_handler_fac){
         surf_handler_ = surf_handler_fac->Create();
@@ -127,6 +139,9 @@ io::EntityIOHandlerP FileTypeDialog::GetEntityHandler(){
  return entity_handler_;
 }
 
+io::SequenceIOHandlerPtr FileTypeDialog::GetSequenceHandler(){
+ return seq_handler_;
+}
 
 io::SurfaceIOHandlerPtr FileTypeDialog::GetSurfaceHandler(){
   return surf_handler_;
diff --git a/modules/gui/src/file_type_dialog.hh b/modules/gui/src/file_type_dialog.hh
index 3efee2c535739d0c2e068600a25cd5a9da49e388..b0d6e44338a655ab80d08b4ffd3b8568cc498f20 100644
--- a/modules/gui/src/file_type_dialog.hh
+++ b/modules/gui/src/file_type_dialog.hh
@@ -31,6 +31,7 @@
 #include <QLabel>
 
 #include <ost/io/entity_io_handler.hh>
+#include <ost/io/sequence_io_handler.hh>
 #include <ost/io/surface_io_handler.hh>
 #if OST_IMG_ENABLED
 #include <ost/io/map_io_handler.hh>
@@ -44,6 +45,7 @@ class DLLEXPORT_OST_GUI FileTypeDialog : public QDialog {
 public:
   FileTypeDialog(const QString& file_name, QWidget* parent=NULL);
   io::EntityIOHandlerP GetEntityHandler();
+  io::SequenceIOHandlerPtr GetSequenceHandler();
   io::SurfaceIOHandlerPtr GetSurfaceHandler();
 #if OST_IMG_ENABLED
   io::MapIOHandlerPtr GetMapHandler();
@@ -59,6 +61,7 @@ private:
   QTableWidget* list_;
   QLabel* label_;
   io::EntityIOHandlerP entity_handler_;
+  io::SequenceIOHandlerPtr seq_handler_;
   io::SurfaceIOHandlerPtr surf_handler_;
 #if OST_IMG_ENABLED
   io::MapIOHandlerPtr map_handler_;
@@ -69,6 +72,7 @@ private:
 }}
 
 Q_DECLARE_METATYPE(ost::io::EntityIOHandlerFactoryBaseP);
+Q_DECLARE_METATYPE(ost::io::SequenceIOHandlerFactoryBasePtr);
 Q_DECLARE_METATYPE(ost::io::SurfaceIOHandlerFactoryBasePtr);
 #if OST_IMG_ENABLED
 Q_DECLARE_METATYPE(ost::io::MapIOHandlerFactoryBasePtr);