Creating association from "Main" data source to "REST API" data source

I’m unclear about your comment “use it as options”.

I’m unable to use REST API data in any way within my project: data associations, query nodes (query looked correct, but data was not usable), workflows—both “Collection event” and “Post-action event” workflows didn’t have access to the collection or its fields for downstream nodes.

Are you specifically saying that if I wanted to use a few data points to create a “new select field type” automagically that 2.0 will have the functionality?

Sorry, just trying to understand for anyone else who reads this thread…