Can I use an aggregate devices on macOS? 26 June 2026 10:07 Updated Yes. Session Pro on macOS let you select an aggregate device to be used for audio output and input. Related articles Does Sessions Pro automatically map Widget controls to my MIDI controller? Why am I asked to lower security settings when adding certain plug-ins? Can I use the instruments and effects from Logic Pro or GarageBand with Sessions Pro? Does Sessions Pro support MPE? Can I try Sessions Pro before I buy?