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 |