Slice Non Repeatable Zone

I noticed on this video they have a non repeatable zone section.

But on my slice machine I don't have non repeatable zone section

Found my answer.

Repeatable zone replaced by group fields

In the past, every slice had one "non-repeatable zone" and one "repeatable zone." As of May 2024, the repeatable zone has been deprecated, and the non-repeatable zone can now contain group fields.