This tab allows you to control the permissions of the current category. The first list displays all groups, which have permissions already associated with this category. If a group is not shown, that means that its permissions will be inherited from the parent category. To add a new group definition, click on the New Permission' button (icon with a yellow lock and a little sun). A new page will pop-up, prompting you to select the group which you want to add. Only those groups will be shown which don't yet exist in the group list. 
  Once you add or edit a group, you will be directed to the page defining the permissions. The permissions are broken down by type, one for the In-portal platform permissions, and one for each of the installed modules. The Inherited' check box specifies that a particular permission is inherited from the parent, and therefore cannot be defined for this category. The Access' check box shows whether a permission is set or unset in the current category. Next to the check box, you will also see a green or a red circle. These circles indicate the active permission state for the category  red means unset, and the green  set. This is especially useful in for the inherited permissions  you don't have to look up the parent category to find out what the value of a particular permission is. The last column, Inherited From', shows the category name and full path that defines the permission for the current category. It may be an immediate parent, or any other grandparent category in the tree  all the way up to the Home' category. The Home' category does not have the inheritance options, since it is the highest category in the tree, and does not have any other category to inherit the settings from. The list of In-portal platform permissions is as follows: 
<ul>
  <li> View Category  controls whether a user can view the subcategories in this category. 
  <li> Add Category  controls whether a user can add categories inside this category. 
  <li> Delete Category  controls whether a user can delete categories inside this category. 
  <li> Add Pending Category  controls whether a user can add categories inside this category, but in pending mode  awaiting administrator's approval before they become active. 
  <li> Modify Category  controls whether a user can modify categories inside this category. 
  <li> Allow favorites  controls whether a user can utilize the Favorites function on the items in this category. The favorites feature works like a bookmark  it allows users to mark the items they find useful, and they will be displayed in My Favorites' section in their account on the front end.
</ul>