How do you save data to database using EXT: Form in TYPO3 8.7.1?

I need to create a contact form to allow users to send emails. Data must be saved in the database and notification send to the user. So far, I've been using EXT: Powermail, which works fine. In current project I'm using TYPO3 8.7.1 and I'd like to use EXT: Form 8.7.0. I've a test installation based on Introduction Package. I'm using predefined "Contact Form", but in the edition mode, I can't select finisher "Save to database". The only finishers I can see are: email to sender, redirect to a page, delete uploads.

how to enable finisher to save form data into database? and where to select "Storage Id"?
is it possible to list all records (emails) in List module similar as it is in Powermail extension?

I've been searching for some tips in a documentation, but couldn't find that.

Solution

There is a SaveToDatabase-Finisher in the new Form Framework, but as far as I know you can only use it programmatically via YAML or API.

Here is the link to the corresponding doc: https://docs.typo3.org/typo3cms/drafts/code.tritum.de/TYPO3.CMS/Form_Documentation/ApiReference/Index.html#savetodatabase-finisher