This plug-in hides a specific part of the content of a page (or post) to all users whose user level is below a required user level. Therefore, if a content is visible to user level X: 1. if X > 0 users who are not registered will not be able to access that specific content; 2. users whose user level is less than X will not be able to access that specific content; 3. users whose user level is equal or greater than X will be able to access that specific content. To hide a specific content, use the...