Show additional fields after option

[GASOLINE]

Hi,

I'm making a add listing page where people have an option to choose a FREE or PAYED listing. With the payed option they can fill in more fields.

Is it possible that if they choose for payed option (featured f.e.) they are presented with extra 'Required fields'.

So these fields are not shown and necessary but only appear and are Required if they tick an option, like f.e. Featured.