Array of enums doesn't allow you to specify order or duplicate entries

If I have an array of enums in a parameter, e.g.:

parameters": [
    {
        "name" : "test",
        "in" : "query",
        "type": "array",
        "collectionFormat": "csv",
        "items": {
            "type": "string",
            "enum": [ "a", "b", "c" ]
        }
    }
]

swagger-ui 2.1.1 will show a multi-select box. This is nice if the order of the array doesn't matter. But if you need to specify the order, it won't work.

Not sure what the best interface is here, unless you want to have multiple single-select menus with add/remove buttons.

Start by reproducing the array-of-enums behavior in Swagger UI 2.1.1 using the query parameter example and its current multi-select control. Review the control's handling of enum arrays, then determine an interface that permits both explicit ordering and duplicate entries. Done means users can submit an ordered array containing repeated enum values.