by Mytchall Bransgrove on WordPress.org
Adds a toggle button to the admin bar to simplify the dashboard by hiding specific menu items.

The admin screen with nothing hidden.
“Simplify Dashboard” adds a toggle in the admin bar to hide menu items you don’t use much.
It gives you a simple interface for your users, and can be quickly turned on or off.
Choose which items are hidden in the Settings>Simplify Dashboard page by writing their menu name, or specify the actual HTML id.