Additional configuration for <presto:type> when datatype is enum.

Use this to configure the list of values that users can select from for a this property. Values for options may be literal or dynamic.

For literal valid values, you can define them as a simple, comma-separated list in <presto:values>. Or, you can use <presto:option> children to provide both the labels that users see and the actual values that are sent to the macro.

For dynamic valid values, you can use <xpath> within <presto:list>. Or you can define dynamic lists using <uiconfig> rather than <presto:type> and <presto:list>. See Limit Custom Block User Entries to a List of Values for more information and examples.