Ben,
If you mean ignore one or more values, the answer is no. You can’t do that.
To do this, you’ll need to use the enumeration in a separate entity associated to your main entity. Then use a reference selector or association radio button list. In either of these controls, you can put conditions on the list of values that will be displayed.
Hope that helps,
Mike
You also might want to check this widget: https://appstore.home.mendix.com/link/app/56183/Finaps/EnumSelector
With this you can define which enums to show in your dropdown.
Regards,
Ronald