Validating all forms in manager at same time

Create an unique form dynamically using your part1 and part2

how would one make a unique form dynamically - as this sounds perfect. You cant merge two objects into one, and Ive googled everywhere but I can not seem to find any such thing as dynamic forms?

The dynamic forms I see are only for dynamic fields in a single form, which again will increase duplication. Im trying to keep resuable small forms and combine when needed.

Don't merge the two in one like an array, you need to create a new form class, instanciate the 2 part, parse elements and add them into the new form.
Give me the code of your two forms then I'll show you.

Form 1

<?php

namespace Forms\Register;

use Phalcon\Forms\Form,
    Phalcon\Forms\Element\Text,
    Phalcon\Validation\Validator\PresenceOf;

class Form1 extends Form
{
    /**
     * Initialize the form
     */
    public function initialize()
    {
        $this->addElement1();
    }

    /**
     * Add the element 1 to input
     */
    private function addElement1()
    {
        $element = new Text('element1', array(
            'placeholder'  => 'Enter Element1 Value..',
            'name'         => 'element1',
            'autocomplete' => 'on',
            'tabindex' => 1
        ));
        $element->setLabel('Element One:');
        $element->addValidators(array(
            new PresenceOf(array(
                'message' => 'Your element one is required'
            ))
        ));
        $this->add($element);
    }
}

The second Form:

<?php

namespace Forms\Register;

use Phalcon\Forms\Form,
    Phalcon\Forms\Element\Text
    Phalcon\Forms\Element\Submit,
    Phalcon\Validation\Validator\PresenceOf;

class Form2 extends Form
{
    /**
     * Initialize the form
     */
    public function initialize()
    {
        $this->addElement2();
        $this->addSubmit();
    }

    /**
     * Add the element 2 to input
     */
    private function addElement2()
    {
        $element = new Text('element2', array(
            'placeholder'  => 'Enter Element2 Value..',
            'name'         => 'element2',
            'autocomplete' => 'off',
            'tabindex' => 2
        ));
        $element->setLabel('Element Two:');
        $element->addValidators(array(
            new PresenceOf(array(
                'message' => 'Your element two is required'
            ))
        ));
        $this->add($element);
    }

    /**
     * Add the submit Form
     */
    private function addSubmit()
    {
        $submit = new Submit('register', array(
            'name' => 'register',
            'value' => 'Create Your Account',
            'tabindex' => 3
        ));

        $this->add($submit);
    }
}

The Controller

        $this->forms->set('form1', new \Forms\Register\Form1());
        $this->forms->set('form2', new \Forms\Register\Form2());

So Currently I have a choice of doing something nasty like:

           if (!$this->forms->get('form1')->isValid($this->request->getPost())
             && !$this->forms->get('form2')->isValid($this->request->getPost())
               || !$this->forms->get('form1')->isValid($this->request->getPost())
                || !$this->forms->get('form2')->isValid($this->request->getPost())
                )
            {

                $messages = array();

                foreach($this->forms->get('tenant')->getMessages() as $msg)
                {
                    array_push($messages, $msg);
                }

                foreach($this->forms->get('user')->getMessages() as $msg)
                {
                    array_push($messages, $msg);
                }

                $output = null;

                foreach($messages as $message)
                {
                    $output = $output . ' ' . $message;
                }}

                $this-view->errorMsg = $output;

I want something cleaner that puts all form validation together.

The view

                <fieldset>
                    <dl>
                        <dt>{{ forms.get('form1').label('element1') }}</dt>
                        <dd>{{ forms.get('form1').render('element1', ['tabindex': '1']) }}</dd>
                    </dl>
                    <dl>
                        <dt>{{ forms.get('form2').label('element2') }}</dt>
                        <dd>{{ forms.get('form2').render('element2', ['tabindex': '2']) }}</dd>
                        <dt>{{ forms.get('form2').label('register') }}</dt>
                        <dd>{{ forms.get('form2').render('register', ['tabindex': '3']) }}</dd>
                    </dl>
                </fieldset>