Okay, I have updated the plugin to accept the Traktor inputs (that you refer to as ‘standard key’ in your list). Please download and install this new version from my github repo, give it a try and let me know if this works for you. If it’s what you expect to see, then I’ll submit the revised version to the official Picard Plugins repo. Thanks.
Edit: Another question is whether there is any benefit in adding another function to output the Traktor format?