"Use & Respond" page should mention `SelectionList` objects

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Is your feature request related to a problem? Please describe.

We added SelectionList objects in 2025.9, but the Use & Respond page doesn't mention them.

Describe the solution you'd like

Add either a paragraph or maybe a callout in the Guidance on Communicating Results section that shows how the SelectionList object supports this. This may entail:

• modifying the example that shows how Utility is affected by partial knowledge to show how the Utility decision point is constant while the Utility Selection changes based on the Value Density Selection.
• this likely means creating an example function that returns the desired example in both tabular form and json which may also require:
• adding a generic example generator for SelectionList similar to what we have for DecisionPoint objects that generates the current examples