Remove multiple authors’ names on single page

2 issues we need your help with.

1. When searching for an image we are only able to view, upon hovering, the complete thumbnails of the 1st 2 rows of options. See this screenshot: https://pasteboard.co/GRbYr9n.jpg
2. So we selected a number of options for one page in order to view them more closely in the Media library. What resulted are numerous authors’ names at the end of the single page we’re using only 1 featured item on. How do we remove all of the authors and start over — or — how do we remove all of the authors we are not using? Screenshot: https://pasteboard.co/GRbZ2oy.jpg

Any help with this is much appreciated. We really like having this plugin.

The page I need help with: [log in to see the link]