Add dynamic label to submenus that can be changed at every call

template/qtgui/submenus.py

@@ -50,6 +50,10 @@ class Submenu(QtWidgets.QDialog):
         label = QtWidgets.QLabel(labelString) #"Choose a clef" or so.
         self.layout.addWidget(label)
 
+        #Second Label that can be changed on every call with self.dynamicLabel.setText()
+        self.dynamicLabel = QtWidgets.QLabel("")
+        self.layout.addWidget(self.dynamicLabel)
+
         #self.setFocus(); #self.grabKeyboard(); #redundant for a proper modal dialog. Leave here for documentation reasons.
 
         if hasOkCancelButtons == 1: #or true
@@ -100,7 +104,8 @@ class Submenu(QtWidgets.QDialog):
         self.done(True)
 
     def __call__(self):
-        """This instance can be called like a function"""
+        """This instance can be called like a function.
+        Subclasses can subclass this as well to create non-static functionality."""
         if self.buttonBox:
             self.layout.addWidget(self.buttonBox)
         self.setFixedSize(self.layout.geometry().size())