WPMU DEV ADMIN PANEL TIPS Plugin
Admin Panel Tips displays tips at random on the top of every page in the WordPress dashboard.
WPMU DEV ADMIN PANEL TIPS Plugin provides an effective way of sharing tips and tricks to all the registered users on a Multisite network.
Simply visit the new ‘Tips’ tab under Settings in the network admin dashboard to enter in as many different tips, news, promotions or whatever you choose. Tips are fully HTML compatible and give you options to edit, add to, save as draft or delete later – so you maintain complete control. Please visit official plugin page for more information Link –