SpecFlow+ Runner parallelization on class level

Question

I want to run tests in parallel on class/feature level, my tests are running on scenario/method level, tried to change settings in srprofile, but didn't help. I tried the same project with MSTest runner and works fine, can't figure out what to do with SpecRun.

What I want is [assembly: Parallelize(Scope = ExecutionScope.ClassLevel, Workers = 5)] for SpecRun

Here are my srprofile settings

<Execution stopAfterFailures="0" retryFor="None" retryCount="0" testThreadCount="5" testSchedulingMode="Adaptive" />
  <Environment testThreadIsolation="AppDomain" apartmentState="Unknown" />

Answer 1

It is not possible to run tests parallelly on Feature/Class level using SpecRunner.
Feature parallel test execution is supported by:

• NUnit
• MsTest
• xUnit

source:
SpecFlow Documentation