Manage and edit your Testimonials Module Structure to enable detail view, secure this module, and add custom fields.
Edit Module Structure
Above your list of Testimonials items, you have the option to "Edit Module Structure".
Here, you can manage and edit information about this Module, such as:
Has detail view? - Choose whether this Module will have a detail view
Secure Zones - Items can be made secure - Choose to secure these items, and whether to show these in list or hide.
Standard Fields - These are the same fields that can be seen in the Standard Fields tab when editing
Custom Fields - Here you can add, edit and remove custom fields to use for your FAQ Module