Symfony3: How to set multiple connections?

I'm working with a Symfony3 app and I want to set up multiple connections to different databases.

I've been looking around and I found out the documentation about entityManagers and DB connections. My config.yml is configured as follows:

config.yml

doctrine:
dbal:
    default_connection: default
    connections:
            default:
                    driver:   pdo_mysql
                    host:     "%database_host%"
                    port:     "%database_port%"
                    dbname:   "%database_name%"
                    user:     "%database_user%"
                    password: "%database_password%"
                    charset:  UTF8
                    mapping_types:
                      enum: string
            other:
                    driver:   pdo_mysql
                    host:     "%database_host2%"
                    port:     "%database_port2%"
                    dbname:   "%database_name2%"
                    user:     "%database_user2%"
                    password: "%database_password2%"
                    charset:  UTF8
                    mapping_types:
                      enum: string
orm:
    dql:
         string_functions:
                DAY:   DoctrineExtensions\Query\Mysql\Day
                MONTH: DoctrineExtensions\Query\Mysql\Month
                YEAR:  DoctrineExtensions\Query\Mysql\Year
    auto_generate_proxy_classes: "%kernel.debug%"
    naming_strategy: doctrine.orm.naming_strategy.underscore
    auto_mapping: true

So now I do can access to my database like this:

$con2 = $this->get('doctrine.dbal.other_connection');
$orders = $con2->fetchAll('SELECT * FROM orders');

But what I really need is to configure a second orm-mapping connection which will allow me to interact with entities instead of dealing with the second database directly. So again as the documentation says I added under the doctrine orm label:

orm:
    dql:
         string_functions:
                DAY:   DoctrineExtensions\Query\Mysql\Day
                MONTH: DoctrineExtensions\Query\Mysql\Month
                YEAR:  DoctrineExtensions\Query\Mysql\Year
    auto_generate_proxy_classes: "%kernel.debug%"
    naming_strategy: doctrine.orm.naming_strategy.underscore
    auto_mapping: true

    default_entity_manager: default
    entity_managers:
        default:
            connection: default
            mappings:
                AppBundle:  ~      
        other:
            connection: other
            mappings:
                OtherBundle: ~

This throws an exception:

ParseException in Parser.php line 296: Unable to parse at line 78 (near " entity_managers:").

How should I configure my config.yml to allow orm-mapping for my second database connection? Should I delete the dql label and use it only under a certain entity manager label?