Minor improvements, add east and west ramp

tools/editortool/map/menubar.py

@@ -1,5 +1,6 @@
 import os
 from PyQt5.QtWidgets import QAction, QMenuBar, QFileDialog
+from PyQt5.QtGui import QKeySequence
 from editortool.map.map import MAP_DEFAULT_PATH
 
 class MapMenubar:
@@ -14,6 +15,11 @@ class MapMenubar:
     self.actionSave = QAction("Save", parent)
     self.actionSaveAs = QAction("Save As", parent)
 
+    self.actionNew.setShortcut(QKeySequence("Ctrl+N"))
+    self.actionOpen.setShortcut(QKeySequence("Ctrl+O"))
+    self.actionSave.setShortcut(QKeySequence("Ctrl+S"))
+    self.actionSaveAs.setShortcut(QKeySequence("Ctrl+Shift+S"))
+
     self.actionNew.triggered.connect(self.newFile)
     self.actionOpen.triggered.connect(self.openFile)
     self.actionSave.triggered.connect(self.saveFile)