Is there a way to capture screen when menu bars are opened?

On GNOME, I would like to capture a screen to show a special situation where I am on _IDEA IntelliJ_, when two menus are opened. Main Window → Menu Bar 1 → Menu Bar 2 But as soon as I open one of these menu bars, nor the Windows key to call the Capture tool, nor the Print Screen Key will work (there's no image captured in the images folder). As if the opening of one menu made GNOME coming entirely modal. Provided I close the menus, I can use capture and print screen again. But it's not what I want... Does a way exist to do a print screen in any situation?