Install in the module, got to Noahs Settings and enable the content types you want to use Noahs Page Builder.

1. Go to https://mysite.com/admin/structure/noahs_page_builder
2. Click on Noahs Settings
3. Enable the content types do you want to use Noah's
4. Create a node of the previously selected content type
5. Save the node and then in the Drupal Tabs you will see the new tab "Edit with Noahs"