Pro Tools

1. Click Track in the top menu and select New...
2. Set the track type to Instrument Track and set the track format to Stereo and click Create.
3. Click an empty plug-in slot on the channel you created and select the path Multi channel plug-in -> Instrument and select the plug-in you want to load.

Loading an effect:

1. Click on an empty insert-slot on a channel, and go to to multichannel plug-in
2. Then navigate to the plug-in you wish to load, you will find them under different categories:
   RC-20 - Harmonics
   DS-10 - Dynamic
   Addictive Trigger - Other

Watch the video below for a visual guide: