How can I add wizard steps to a ProjectTemplate

I'm new into Plugin development.

I've read the article Adding New Steps to Project Wizard, but it only applies to module and module types. I don't know if there's an equivalent for project templates and template factories.

Alright, I have a project template factory, such factory adds project-templates inside the "PHP" section, these project templates inherits the "WebProjectTemplate" class.  The UI of such templates are controlled by "createPeer()".

So, I know how to create project templates, but I don't know to add wizard steps to my project templates (it's different from module types, or module builders, that's why the official article didn't work).