If you have troubles since the update to WordPress 4.5 please read this post before opening a new thread. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts June 18, 2013 at 10:46 pm #25006 matteoraggiParticipant How to show bigger size of thumbnails list in the Gallery Options section of admin of posts and pages? June 20, 2013 at 9:26 pm #125472 DevinModerator Hi matteoraggi, You would need to pretty significantly alter the theme admin files. A good place to start if you are interested to pursue it would be in the includes folder and then in the admin folder. Regards, Devin Author Posts Viewing 2 posts - 1 through 2 (of 2 total) The topic ‘How to show bigger thumbnails in the Gallery Options section of admin?’ is closed to new replies.