In reply to https://www.facebook.com/groups/cakebrasil/permalink/955869807777606/

index.php

<?php
class App
{
    public $controllerTitle = null;

    public function beforeFilter()
    {
        if ($this->controllerTitle) {
            $this->set('controllerTitle', $this->controllerTitle);
        }
    }
}

class Foo extends App
{
    $controllerTitle = 'Foos';

    public function list()
    {
        $this->controllerTitle = 'Listar foo';
    }
}