Logic Pro
How toβ¦ Resize tracks Mouse: Hold Option & Mouse scroll-up/down Trackpad: Hold Option, Swipe up/down Record a USB Microphone + Scarlett Audio Interface Open Audio MIDI Setup Create a new Aggregate Device Add Scarlett Audio Interface and USB Headset Mic to the Aggregate Device Take note of the Input Channel assigned to the USB Headset Mic In Logic Pro, Preferences β> Audio, set Input Device to your Aggregate Device