Allow contributors to edit their own images

You can use WP Users Media plugin: https://wordpress.org/plugins/wp-users-media/ From description: … disable the ability for users to access other members files and attachments through the Media Button and Featured Image sections…

How to hide a field of the editor by default

Here are a couple options. You could just create a stylesheet that loads in the admin area, and enable that for certain users if needed. Here is an example of loading a stylesheet in the admin for users with the role of “shopmanager”. function my_admin_styles(){ $user = wp_get_current_user(); if( ! empty($user) && count(array_intersect([“shop_manager”], (array) $user->roles … Read more