Config::Model::TermUI3pm

 use Config::Model;
 use Config::Model::TermUI ;
 # define configuration tree object
 my $model = Config::Model->new;
  $model->create_config_class(
    name    => "Foo",
    element => [
        [qw/foo bar/] => {
            type       => 'leaf',
            value_type => 'string'
        },
    ]
 );
 $model ->create_config_class (
    name => "MyClass",
    element => [
        [qw/foo bar/] => {
            type       => 'leaf',
            value_type => 'string'
        },
        hash_of_nodes => {
            type       => 'hash',     # hash id
            index_type => 'string',
            cargo      => {
                type              => 'node',
                config_class_name => 'Foo'
            },
        },
    ],
 ) ;
 my $inst = $model->instance(root_class_name => 'MyClass' );
 my $root = $inst->config_root ;
 # put data
 my $steps = 'foo=FOO hash_of_nodes:fr foo=bonjour -
   hash_of_nodes:en foo=hello ';
 $root->load( steps => $steps );
 my $ui = Config::Model::TermUI->new(
     root => $root ,
     title => 'My class ui',
     prompt => 'class ui',
 );
 # engage in user interaction
 $ui -> run_loop ;
 print $root->dump_tree ;

Once the synopsis above has been saved in "my_test.pl", you can achieve the same interactions as with "Config::Model::SimpleUI". Except that you can use TAB completion:

 class ui:$ ls
 foo  bar  hash_of_nodes
 class ui:$ ll hash_of_nodes
 name         value        type         comment
 hash_of_nodes <Foo>        node hash    keys: "en" "fr"
 class ui:$ cd hash_of_nodes:en
 class ui: hash_of_nodes:en $ ll
 name         value        type         comment
 foo          hello        string
 bar          [undef]      string
 class ui: hash_of_nodes:en $ set bar=bonjour
 class ui: hash_of_nodes:en $ ll
 name         value        type         comment
 foo          hello        string
 bar          bonjour      string
 class ui: hash_of_nodes:en $ ^D

At the end, the test script dumps the configuration tree. The modified "bar" value can be found in there:

 foo=FOO
 hash_of_nodes:en
   foo=hello
   bar=bonjour -
 hash_of_nodes:fr
   foo=bonjour - -