How to properly make a dynamic shape using zf2?

Question

Zend Framework

You need to create a complex dynamic form on ZF2.
The form will look something like this:

it will expand downwards.
The user must have a button to add a row, this can be either a section (in bold in the figure, for example, Ruby developers ), or a row with data. In the data line there will be inputs, selects. You also need validation.
Can this be done with zend form?
Please tell me which way to dig and what to look for. Thank you.

Answer 1

It can be done.
Zend Framework 2 has a Collection form element . In your case, it turns out that the form will consist of buttons and a collection (sections) of collections (strings) of Fieldsets, including inputs, selects.
Documentation example:
framework.zend.com/manual/current/en/modules/zend....

Answer 2

Explain clearly the complexity and dynamism of this form of yours?