I can only comment on the Windows version, but I believe that this will be the same on the Mac.

Select Song Settings (probably Command-N on the Mac) and then choose options from there.

Welcome, also.

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BIAB & RB2025 Win.(Audiophile), Sonar Platinum, Cakewalk by Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Kontakt, Focusrite 18i20, KetronSD2, NS40M Monitors, Pioneer Active Monitors, AKG K271 Studio H'phones