Enable Swagger CollectionFormat = multi
It does not appear that the swagger parameters with collectionformat = multi works in the test view. The list of options should be visible in a select list (at least) but allowing users to select multiple items would be best.
description: "Status values that need to be considered for filter",
See the pet store example:
Jacob Møhl commented
I had i similar finding. Arrays in query strings get converted to strings (which is not the same).