Collections as operation parameters

[Mr. Janis Alksnis]

For attributes I can specify, is it collection (Set), collection with duplicates allowed (Bag) or ordered collection with duplicates allowed (Sequence).

Is it somehow possible to specify the same for operation parameters, e.g. Sequence(Element) as input parameter?
I'm not asking about simpy writing free text in parameter type field, but about specifying parameter type as "Element" and specifying that it is ordered collection with duplicates.