Creating an extended field
- From the menu, select Setup > Extended Fields..
 - Click New.
 - Specify this information:
- Name
 - Specify the name for this extended field.
 - Label
 - Specify the text label for this extended field.
 - Type
 - Select the field type from the list.
 - Entity
 - Select the entity where this extended field can be used.
 
 - Click Save.
 - To use an extended field, add it to a custom view.