Deactivate the Display Device
Deactivate the Display Device
You can set up automatic power management so the display turns off when not in use, without needing to unplug it manually.
You can adjust the multi-display options and disable them, but because I sense a need for a custom solution, you'd likely require specialized scripting or a batch file setup—knowledge I don’t possess. Excuse me!
The simplest method is to press 'Windows key + P' and choose 'Computer only'. However, this might turn off the other two monitors instead of just the third one.
I'm pretty confident I've examined the display fusion thoroughly, but I'll give it another shot.
From the right-click menu in the tray icon, if you already own it, select Display or Monitor Profiles (translated version).