I can *easily* create and manage an enumeration / choice

(User Story, Closed -> Duplicate, Priority: High, Test Status: No automated tests yet , Reported By Justin du Coeur, )
Summary: At the moment, creating an enumeration is an unspeakable pain in the ass. We need a lot of UI sugar on top of that.
You currently need to create a trivial Model; create Instances of that Model for each option; and then create a Property pointing to that Model. That's correct in terms of functionality, but it is way too much effort. We should have a simple UI inside Create Property that lets you simply create the whole collection at a shot, and a similar UI somewhere to manage / edit it.
Anna suggests "Choice" as the common term here, with "Single Choice" as one value or "Multiple Choice" for a set. That makes sense.