Enabling main display when disconnecting external ones

[edgar-costa]

The main reason why I want to use this app is to disable my mac book pro's monitor while I have external monitors plugged in.

However if I remove the monitor (for example I want to take the laptop with me), the monitor will remain disabled. Is there a way to automatically re-activate the main monitor (if disabled) when unplug in an external one?

[edgar-costa]

For some reason now it does what I was expecting.