Using XMAL unity as child page in UWP API

I am developing an application under universal windows platform API. In one of the child XMAL pages I need to use an interactive 3D graphics. So, I would like to use a unity project as a child XMAL page in my app. As far as I know there is an export option for Windows 10 (store) compatible project. but met to issues. first I can't use the generated xmal page as an child frame or navigate to it. moreover I don't have access to the 3d objects properties such as position, orientation.

Would you mind please help me to find proper solution Best Regards

Reza