Drupal: expand menu if node url is in menu-item

I've got menu:

London

--Home

--News(shows all London news. Path is /london/news/)

--About

NewYork

--Home

--News(shows all NY news. Path is /ny/news/)

--About

Normally, when i click on News menu-item in London it shows all new related to Londo开发者_开发技巧n. And menu expands. But when I click to news(/london/news/new123/: menu folds. I want menu always be expanded if node is child of menu-item.

I think the Menu Trails module lets you do that without having to write any code.