From this screen, you can add and edit the client types in the system.
Examples of client types might be Prospects, Client, Past Client, On Hold etc.
To create a new one just type the type text in the box and click save.
Existing items can be edited by clicking modify.
WARNING: editing existing items should be done carefully. Be sure not to change the meaning of an existing entry in a mature system otherwise all records that are attached to it will take on that new event type.