code: def register_global_command(self, command, title=None, group=None):
          '''
          .. versionadded:: 0.13
  
  
          Register global command (i.e., not specific to electrode or route).
  
          Add global command to context menu.
          '''
          commands = self.global_commands.setdefault(group, OrderedDict())
          if title is None:
              title = (command[:1].upper() + command[1:]).replace('_', ' ')
          commands[command] = titlf register_global_command(self, command, title=None, group=None):
          '''
          .. versionadded:: 0.13
  
  
          Register global command (i.e., not specific to electrode or route).
  
          Add global command to context menu.
          '''
          commands = self.global_commands.setdefault(group, OrderedDict())
          if title is None:
              title = (command[:1].upper() + command[1:]).replace('_', ' ')
          commands[command] = title
docs: .. versionadded:: 0.13
  
  
          Register global command (i.e., not specific to electrode or route).
  
          Add global command to context menu.