diff --git a/sloth/core/labeltool.py b/sloth/core/labeltool.py
index d1a0b9a..df758c8 100755
--- a/sloth/core/labeltool.py
+++ b/sloth/core/labeltool.py
@@ -429,6 +429,10 @@ class LabelTool(QObject):
     def selectPreviousAnnotation(self):
         if self._mainwindow is not None:
             return self._mainwindow.scene.selectNextItem(reverse=True)
+    
+    def selectAllAnnotations(self):
+        if self._mainwindow is not None:
+            return self._mainwindow.scene.selectAllItems()
 
     def deleteSelectedAnnotations(self):
         if self._mainwindow is not None:
diff --git a/sloth/gui/annotationscene.py b/sloth/gui/annotationscene.py
index e9a56bb..52981de 100644
--- a/sloth/gui/annotationscene.py
+++ b/sloth/gui/annotationscene.py
@@ -260,6 +260,10 @@ class AnnotationScene(QGraphicsScene):
                 item.setSelected(True)
                 break
 
+    def selectAllItems(self):
+        for item in self.items():
+            item.setSelected(True)
+
     def keyPressEvent(self, event):
         LOG.debug("keyPressEvent %s" % event)