customize routing cakephp 2.X -

I'm having trouble with my own routes. Php file works in the past, along with my applcation routes:

  router :: connect ('/ imprenta_online /: family /: subfamily /: id /: title /: ('Slug', 'Slug', 'Id', 'Slug', 'Slug', 'Quantity', '', 'Quantity', '', '' 'Slug', 'Slug'));  

But now, the SEO manager needs to remove the Controller from url , I'm trying to do it in routes The .php and, before, this change works for this URLS, but all the paths that use the backend ( backend_index, backend_edit ... ) have me paused Show errors. ..I am not doing "good", that's why I want to know what can I do

I need some help in knowing what I should do, all the other way the route of cake Works by default, so I did not have to change them.