Sorry, for the delay. We’ve identified that the issue we’d like to fix with this is not only a macOS issue and thus we will provide a cross platform solution for running tasks inside the process block. We won’t expose the os workgroup via an API. We believe that a plug-in is not the best scheduler for real-time threads and that the host must be responsible for this. Thus the host will be able to provide as many tasks in parallel to the plug-in as currently capable depending on the current processed audio graph and available hardware resources.