How dose the ' 'url' => Backend::url('rainlab/blog/posts'), ' work ? I make the ' 'url' => Backend::url('hmm/menus/menu'), ' , but it's hard to find the file or anything which controls it , Help me , thanks a lots

Backend::url('<author_name>/<plugin_name>/<controller_name>')

In the example above, you'd want the /plugins/hmm/menus/controllers/menu.php. Just FYI, I have a great menu plugin already on the marketplace.

oh , thanks a lot , I have another question : how to synchronize database tables in october cms

@ Flynsarmy , thanks a lot , it works well ---