Stian Andreassen

This plugin let’s you set global “Screen Options” for all users in the Dashboard and when adding/editing Posts and Pages. Sets screen options for all users, current and new ones. Option to hide “Screen Options” tab on the Posts and Page pages in WP-admin.

WP Global Screen Options

Hide meta boxes globally for all users on Posts and Pages in WP-Admin and on the Dashboard.

In WordPress 3.8, the setting that controlled the number of displayed columns was removed from the «Screen Options» section of the Dashboard. From now on, WordPress decides how many columns it should display depending on the size of the browser window. This is convenient for mobile use, but not for a web browser maximized to the entire size of a 22-27 inch monitor, since WordPress always shows 4 columns in this case – even if only 2 widgets are shown.
This plugin restores the possibility to control the «Number of Columns» parameter in the «Screen Options» section of the Dashboard.
PS Please note that WordPress doesn’t allow you to select more than 2 columns if your browser window is not maximized.
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Restore Columns

The plugin restores the possibility to select the number of columns displayed on the dashboard.

WP Global Screen Options vs Restore Columns