The User Defined tab contains a UDEF form (NPForm.pbl) that allows you to customize by right-clicking and choosing Customize Form.
The following user defined columns are available and editable:
| 
 Column Label  | 
 Action Table Column  | 
| 
 User Defined 1 Alpha 1  | 
 UDEF_1A_1  | 
| 
 User Defined 1 Alpha 2  | 
 UDEF_1A_2  | 
| 
 User Defined 1 Alpha 3  | 
 UDEF_1A_3  | 
| 
 User Defined 1 Alpha 4  | 
 UDEF_1A_4  | 
| 
 User Defined 1 Alpha 5  | 
 UDEF_1A_5  | 
| 
 User Defined 10 Alpha 1  | 
 UDEF_10A_1  | 
| 
 User Defined 2 Alpha 1  | 
 UDEF_2A_1  | 
| 
 User Defined 2 Alpha 2  | 
 UDEF_2A_2  | 
| 
 User Defined 2 Alpha 3  | 
 UDEF_2A_3  | 
| 
 User Defined 3 Alpha 1  | 
 UDEF_3A_1  | 
| 
 User Defined 3 Alpha 2  | 
 UDEF_3A_2  | 
| 
 User Defined 3 Alpha 3  | 
 UDEF_3A_3  | 
| 
 User Defined Date 1  | 
 UDEF_DTE_1  | 
| 
 User Defined Date 2  | 
 UDEF_DTE_2  | 
| 
 User Defined 3_1 Numeric 1  | 
 UDEF_3_2_1  | 
| 
 User Defined 3_2 Numeric 2  | 
 UDEF_3_2_2  | 
| 
 User Defined 5_2 Numeric 1  | 
 UDEF_5_2_1  | 
| 
 User Defined 5_2 Numeric 2  | 
 UDEF_5_2_2  | 
| 
 User Defined 5_2 Numeric 3  | 
 UDEF_5_2_3  |