Is it possible to achieve it?

Btw, other tools like nircmd or MultiMonitorTool don't do it correctly for some reason. But Windows is able to turn on/off my monitor without trouble.

Can I use DisplayFusion for this? Is there command line interface?

I want selected monitors to be turned off when Im away from computer, but I don't want computer to be off. Using standard windows options doesn't achieve what I want because it also turns off my main monitor - this means 15 minutes of showing "lost signal" message sadly, since it is smart Samsung tv.