Can use MVEL (or something) to store (as a discrete asset) a mapping of fact/fields to value lists. Then these value lists can be used in the Guided editor.
Person.age : [1, 2, 3, 4, 5, 6, 7]
Person.sex: [M, F]
Person.classification: [ HIGH, LOW]
these are then used to drive drop downs.
For extra bonus points, provide a means to display a different value to what is rendered.
This can then be loaded as a separate map into SCE and loaded up to the client for display as needed.