Yes I did it but nothing is changing ..
It's like it didn't find the node in the translation file.
Here is the code that add the 'Dashboard' at the beginning of the breadcrumb:
//SonataAdminBundle/Admin/Admin.php
...
$child = $menu->addChild(
$this->trans($this->getLabelTranslatorStrategy()->getLabel('dashboard', 'breadcrumb', 'link'), array(), 'SonataAdminBundle'),
array('uri' => $this->routeGenerator->generate('sonata_admin_dashboard'))
);
...
When I try to change the first parameter of the getLabel (just for debugging) it works.
Perhaps I should down deeper in the getLabel method to understand.
Regs