How to create an unlimited number of text blocks, duplicate and delete them, so that everyone can write their own text, and not duplicate. I know that page builder for WordPress can do this, but it’s very difficult to isolate this particular moment in them.
I would be grateful for any links and tips.
P.S. Perhaps some kind of plugin can be installed that will help with this, but not these cumbersome page builders.
1. Add a metabox with the text field https://developer.wordpress.org/plugins/metadata/custom-meta-boxes/
2. do the name of the field field_name  so that the value is saved to the array
3. Add a button to add another field, and assign the cloning of an existing field to https://api.jquery.com/clone/, if the existing field contains content, clear the cloned object https://api.jquery.com/filter/, https://api.jquery.com/val/, add a new field below the current one https://api.jquery.com/append/, https://api.jquery.com/insertAfter/
On the Home page, you will receive as post_meta https://developer.wordpress.org/reference/functions/get_post_meta/ the value of each text field will be as an element of the array