Sending notes from DAW through the A4's MIDI port?

Haven’t seen this come up in my search, sorry if it’s a dupe thread.

I have another synth module I want to sequence with Live - is there a way to route the MIDI signal so it exits the A4’s THRU port?
Or do I absolutely need another USB-to-MIDI interface?

Trying to keep my setup as minimal as possible, not a big deal if it’s not doable.