I am looking for a Linux program that can add an option on each window or a keyboard shortcut that would allow me to move a window to a specified monitor. Free is better.
On Windows, I use UltraMon, it cannot add a keyboard shortcut but it adds an option in the menu of each window:
Demo (for whatever reason LICEcap fails to show the icon I am clicking in the recording...): UltraMon allows me to choose to which monitor the window should be moved amongst all monitors