Start by reading Installing mu-plugins section in our comprehensive WordPress MU Manual if you are new to WordPress MU.

To install:

  1. Download the plugin file
  2. Unzip the file into a folder on your hard drive
  3. Upload additional-privacy.php to wp-content/mu-plugins/

To use:

  1. Go to Site Admin > Options

  2. Scroll down to Blog Privacy Settings.
  3. Choose your default setting for newly created blogs, decide if you'll allow blog admininstrators to modify the privacy settings on their blogs and decide if you want to apply changes to all newly created blogs (or include previously created blogs).

  4. Click Save Changes

Please Note:

  1. Selecting Yes for Allow Override means a blog administrator can change the privacy setting of their blog via Settings > Privacy.

  2. Select ‘Update All Blogs’ to update blogs existing blogs created and apply to all new blogs being created.
  3. Don’t select ‘Update All Blogs’ if you only want these new changes to apply to all new blogs being created.