How to edit existing page

Edit Existing Page using WPBakery Page Builder:

1. Go to Dashboard → Pages → All Pages. 
2. Choose the Page from the list and click on the button Edit with WPBakery Page Builder.
3. Then find the section/element you want to edit. 
4. Customize chosen shortcode and save the changes.

Detailed information about work with WPBakery Page Builder you can read in WPBakery Knowledge Base