How can i create my own kernel and attach to UI?

[rbuergi]

The package and version I'm asking about: latest

Question

I have created my own ConnectKernelDirective and connect to a kernel via SignalR (not the one included). However, I don't get the kernel to show up in the UI. When I hack the notebook and put my kernel manually, all works fine.

My questions:

1. In the implementation, I am using ProxyKernel shipped in dotnet.interactive. How do I have to configure ProxyKernel to show up in the select kernel dropdown? Can I make it the default once it has been connected?
2. As results i am sometimes issuing interactive views in the form of iframe. This works fine, except for the choice of the height of the control. Is there any way to make the height of the control adapt to the actual content, given it is loaded dynamically in an iframe?

Thanks very much for the support.