@Andrey Yasko awaiting your prompt response.

Una already have possibility for Multi-app network. Federation isn't really great for Una flexible schemas framework since all participating networks will have fixed apps and schemas.

So my interest is in Multi-tenant app. I believe when the multi-site feature was first discussed by you, it's focus was on the Multi-tenant app. Have been trying to set-up this but unfortunately not able to get it to working right since no documentation yet on its full configuration. I hope you can finally help out on this.