An enumeration restricts which values can be set for the value constraint. For example, "ABC" and "123". Use this section to create a list of fixed values that the associated type must match.
To set an enumeration:
Click Add to the right of the Enumerations field. This adds an enumeration that has a default enumeration (for example enumeration1).
Type the data that you want to set for this value constraint.
Press Enter on your keyboard.
Repeat steps 1-3 for each enumeration that you are adding.