Hide Screen Options for Non-Administrators
Hides the Screen Options tab for everyone except administrators, so other users cannot rearrange or hide admin panels.
WPIDE Team 6 installs
Snippet Library
Admin snippets for WordPress
Snippets that tidy up and tailor the WordPress admin: hide menu items, add columns to post lists, change the footer text and remove clutter. Made for agencies and site owners who hand a dashboard over to clients or editors.
Hide Admin List Columns by Default
Hides less useful columns for users who have not customized Screen Options yet. Anyone can still turn them back on.