No "Remote Sources" with studiomux v5.116

Hello, I am new here. I’ve been using Studiomux for years, most recently V4.1.6. Today I updated to V5.116 and I’m wondering how to include remote devices? Under “Channel xx”, “Remote Sources” there is nothing to choose from. Under Studiomux V4.1.6 there was the “studiomux console” for Windows 10 which still starts but obviously has nothing to do with V5.116. There is now a “studiomux server” for Windows 10, but you can’t set or select anything. Have I misunderstood something or not installed correctly? Many thanks in advance.