x.ShouldBeEquivalentTo(y, opts => opts.Excluding(si => !si.PropertyInfo.CanWrite));

x.ShouldBeEquivalentTo(y, ExcludeProperties);

private EquivalencyAssertionOptions<xx> ExcludeProperties(EquivalencyAssertionOptions<xx> options)
    {
            options.Excluding(t => t.CeOperator);
            options.Excluding(t => t.CeOperatorName);
            options.Excluding(t => t.Status);
            options.Excluding(t => t.IsOperational);
            return options;
    }

x.ShouldBeEquivalentTo(y, opts => opts.Excluding(si => !si.PropertyInfo.CanWrite).Excluding(si => si.SomeOtherProperty));