• Download the plugin from the Download link in sidebar.
• Unzip the plugin
• Upload bpdev-stealth-mode-for-siteadmin to wp-content/plugins
• Login as Site Admin and Go to Dashboard->Plugins->Installed
• Activate "(BuddyDev) Stealth Mode for Site admin" Sitewide
• Visit your BuddyPress Profile-> Settings->Stealth Mode and hide your presence