The information you can have showing can be customised using the Smart Tables available in the contacts module. Views can be created to show specific information about one or multiple contacts and allow you to filter down the information shown. 

To create your a View In the Web Portal > CRM > Contacts.

Actions can also be made against the selected contact/s which can save time when doing things in bulk such as; setting contacts as active or inactive, deleting a single or multiple contacts and pushing and pulling contact information to and from accounting software. When more than once contact is selected you are able to merge these together. Merging contacts is useful when there is one or more from the same location as you can set a Primary contact.