SQL server 2016 mobile reports - personalise user querys

Hello, we have embedded the mobile dashboards into our existing asp.net app with an iframe and it works well but we are unable to pass the username from the url (&UserId)  into the dashboard dataset to retrieve only their data. In ssrs you could use the logged in username in the dataset.

Here is a similar post on this issue

https://social.msdn.microsoft.com/Forums/en-US/7ee117db-a1d1-450c-a388-fd60a329243a/passing-querystring-parameters-to-ssrs-2016-mobile-report?forum=SQLServer2016Preview

If anyone knows if this functionality will be available in the future that would be great

Thanks