Welcome to the forum.
When you Insert a soft synth, there is a box you can check to 'Enable MIDI Output'.
Theoretically, you can check that box and have the synth output the MIDI data to another MIDI track connected to a different soft synth and using a different patch.
You could (again, theoretically) have several synths outputting the same MIDI data and making different noises.
I couldn't get it to work on this new computer with my old program, though. I've never tried it on my music computer, but you can give it a shot.