Question

Request: Multiple outputs from audio plugins that support that.

Answer 1

This is already available.  In the image below, you can see that I clicked that arrow and it shows all of the possible outputs I can enable for Impact XT.  That same menu will be available on 3rd party plugins if they support multiple outputs.  If you click the outputs you want to enable, individual output channels will be added to the console so you can mix and apply effects to each individual output.

Answer 2

This is true for virtuell instruments but not for audio effects plugins.

I asked Presonus support about that and their told me :

There's no facility in Studio One to manage multiple outputs from audio plugins.

If you would like to make a feature request for Studio One to be added in a future release, we have a forum section specifically for Feature Requests.