I have an idea that you do not want to stream anything to the Management Client but want to stream to the XProtect Recording Server and make live and playback video available in the Smart Client, and in the setup scenario the live video should also be available in the Management Client. I hope it fits.
I have an idea that what you are looking for might be the universal driver to add your streaming device to the XProtect.
https://developer.milestonesys.com/s/article/Use-and-configure-the-Universal-Driver
If I am on the right track this is not related to software development with the MIP SDK, which is the focus of this forum. In that case if you need more information, please ask again in the support community, you should get better help from the partners using the support community.