Brock Allen released the new beta version of IdentityManager last week. There are quite some changes in the security model, so the configuration also changed.
He even took some videos (Setting up ASP.NET Identity and Security and IdentityManager) on how to configure the new version properly. These well explain the usage in a classic ASP.NET MVC application, and also ADFS setup, but I couldn't find any help or sample code about how to make it work side by side with Identity Server v3.
Can you please share your experiences configuring IdMgr's remote access with the help of IdSrv3?
After posting that question, I opened an issue on Github and had some chat on IdentityManager Gitter Chatroom, I managed to solve that issue.
There was a sample host configuration in IdentityManager Github Source. Implementing the exact configuration on my project, now I can remotely connect to IdMgr using IdSrv3.
Hope that helpes someone.