...NG Dynamic Forms is built to provide solid yet unobtrusive support for a variety of common UI libraries. In order to improve clarity, it's often considered good practice to group forms into several logical fieldset sections. Thus NG Dynamic Forms supports the nesting of form groups out of the box! Sometimes forms need to allow the user to dynamically add multiple items of the same kind to it, e.g. addresses, products, and so on. Particularly, for this reason, Angular provides so-called Form Arrays.