Download Codecanyon Smart Admin Tweaks
Smart Admin Tweaks is collection of tools and tweaks for controlling various elements of WordPress website. All tweaks are split into 10 panels (1 is exclusively for Network Admin panel). In WordPress multisite more, panel Global is available only in Network Admin panel.
Plugin is convenient and very easy to use, it involves no custom coding, no need to add things to your functions.php file, and it makes experimenting with different kinds of tweaks very easy with very little chance to break things.