changing Template for IEquatable and IEqualityComparer in 2016.3

Is there a way to change the implementation details, when you add a IEquatable<T> or IEqualityComparer<T> to your own class? I am using R# Ultimate 2016.3

I want to have some brackets around single if statement, because of StyleCop Rules. And also want to use C#6 Features like null-coalescing in the GetHashcode method, for example, so that i don't have to change that every time by hand.

Thanks