OP-Z app, is it possible to run the macOS port in windowed mode? July 05, 2021 14:28 Updated windowed mode is the default, you can press cmd+f to exit fullscreen. Related articles OP–Z - can i sample a line level signal via the headset jack using an adapter? OP–Z app compatibility status, bluetooth, ios, mac and android. OP–Z - how do i update the firmware? OP-Z, can the LEDs intensity be reduced? where do i find my serial number?