You might be able to get some additional information from their page on exchange.adobe.com. Here is the page.
It looks like you might be able to email email@example.com for questions. I'll also email them to see if they can respond here incase others have the same question.
@TanmayMathur - Anything to add here?
>>>. Currently extension can be configured with 1 userid. We will see in near future if we can add support for multiple userids.