Deleting multiple images at a time is a great way to remove unwanted content and update your website's gallery media.
- In the editor click on Pages.
- Scroll to your gallery page and click the blue Edit button.
- Mouse over each image and click the square icon to select each desired image.
- Once you have all media selected, click the red button at the bottom called Delete Selected Media.
- Once clicked, the unwanted media will be removed.