Previews windwo

Hello everyone
Can I move my preview window to another a screen?
Thank you in advance!

Yes you can. But see this problem report:

Sort of. The portion you specifically outlined, no.
What I outlined in green is what is you will get on the other monitor.
2022-01-14_12-02-46

This is what you get. (I just positioned Shotcut over top of the preview.)
You could also undock a specific window like the Timeline and position it over the preview.