Hi @esk8Jeffy
Welcome to the forum.
You can use Scaler to send midi to external instruments. Not only that, it does support sending midi on multiple channels although at present this is limited to four channels (see Scaler 2.7 Multi Out, how to guide and information for various DAWs and Using Multi Voice Output with Scaler driving multiple Scalers in Studio One - Incredible! and Basic Introduction to Multi Out.
Hopefully this will be expanded in the future.
Hope this helps