How to properly define a form object in Zend Framework 2?

Question

Zend Framework

How, or rather where, to define a form object that should be available on any page of the site ("callback"), without creating an object of this form in each controller / action?

Answer 1

The form can be created by a separate class, and can be obtained anywhere from the ServiceManager via the FormElementManager.
An example of receiving in any controller:
where ModuleName\Form\MyForm is the full class name of the form (including namespace)