Send multiple responses, with delays, to one request (Asynchronous Responses)

[itinerantmarshmallow]

Is your feature request related to a problem? Please describe.
Yes. I have a system that I need to Mock that will send multiple updates / responses for one request in a particular sequence, time varies between responses.

Describe the solution you'd like
Is there a way to have an endpoint send multiple responses for one request.

Describe alternatives you've considered
Can't think of any.

Additional context
The responses we are attempting to mock will trigger further differing requests from the main application depending on the content of the response body we simulate.