Add New Network Users to the Main Site
Adds every newly registered user to the main site with a role you choose, so members of any subsite also have an account on your hub site.
Snippet Library
Multisite snippets for WordPress
Snippets for WordPress Multisite networks: network-wide settings, new site defaults, super admin tools and cross-site tweaks. For network administrators who manage many sites from one install.
Return to the Main Site After Logging Out
Sends users to the network's main homepage when they log out from any site, giving the whole network one consistent exit point.