The Contact Storage module provides storage for Contact messages which are fully-fledged entities in Drupal 8.

With it you can store, edit and delete messages, customize button text, hide preview button and work with it all in Views.

The Contact Storage module adds the "List" Tab to the Contact Forms Screen as shown below.

Enabling the OpenAid Contact module will provide a Contact webform. You can view the form at /contact or by bringing it up at admin/content.

Add the Contact form to a Menu

You can then add the form to the menu of your choice at /contact/edit

Customize the Form Elements

To edit the form elements on your Contact page, select the _Webform_ working tab.