I am not able to configure the StyleCop Analyzers (Roslyn) in Rider.
I saw this answered question already, but I cannot find Code Analysis
in my project properties.
I also tried Inspections and checked every menu item, but I cannot find a single thing, which would allow me to change the settings to enable/disable some rules.
The answer you're referring to is a) pretty old and b) only valid for Visual Studio.
Within Rider, you have two options: