How’d he do that? Routing/reamping

Disclaimer- Ive had the QC for two years and have never used it as an interface.

I watched the promo NDSP sent out Sep 10. https://m.youtube.com/watch?v=ZfM6vrV1oK8&t=148s&utm_source=Klaviyo&utm_medium=campaign&utm_campaign=UE+|+C2%2FM30+(Sep+10)+-+Video+Showcase%3A+Song+From+Scratch&utm_klaviyo_id=01G6NVY4ZRNAZHVT2Q7GKNFD59&_kx=0tEb-EuK7QmY5oM_2KyrdY0aGc8xHiZWOQzuFeNudic.LF8evq

@2140 he adds a synth. Dx7 (arturia plugin i think?)

He’s using logic. Im assuming he’s using the i/o plugin, but I was unable to replicate and/or figure this out. Please share if you got this down?

Specificity is my friend here.

As a tangent question how would saving presets work here. Is it 1) linked to the project via midi (from logic - that would be cool) or is it 2) saved as a preset and recorded into the track (in place)?