handling of multiple screens

I have been connecting 2 other screens with my laptop in using fiji at home. Now with only the laptop at work, I cannot retrieve some panels, i.e. the window remain in the other screen. How do I move it back to the main one ? please help.

The report names no source file, entry point, or test; begin by reproducing the multi-monitor window-placement scenario in ImageJ2/Fiji with only the laptop display. Done would require a confirmed way to restore off-screen panels and a regression test or documented behavior, but the issue supplies no acceptance criteria.

Written by the indexing model from the issue text.