1. Change the output of the Audio track where Stylus is inserted, from your "main outs" to "bus 1-2" (or a free bus pair).

2. Create a new Audio track, whose input is "bus 1-2" (the same bus as in step 1), and set the output to your main outputs.

3. Record enable the new track, and put DP into record. Assuming a MIDI track is triggering Stylus on the first track, it will bus to the second audio track and record.