Disable macbook monitor to connect a second external monitor

[wyfo]

My current MacBook Air M3 only support having 2 external monitors with the lid closed. Would it be possible to just disable the macbook monitor to use 2 external monitors, but with the lid opened?
I've just tested with BetterDisplay pro feature, and it doesn't seems to work, the second monitor is not detected when the macbook's one is disabled.

[waydabber]

No, the lid must be closed so the internal display is fully disconnected and its framebuffer port can be repurposed for an external display. When the display is available in a soft-off state (what the app does), its resources are still dedicated to the built-in display (so it could be waken up).

[negentropi]

i did suggest you give a try displayplacer. it is a cli that mid hard off state. tho if you on the 26.4 might become even harder to on