Using dual monitors - Lightroom

I'm using Lightroom CC, and have a monitor connected to my laptop.
I've clicked on the second screen icon at the top left of the filmstrip, so I've got a floating window showing the loupe view of the selected photo.
Both screens are identical - I can't work out how to get the loupe photo to fill my monitor and leave everything else on my laptop.
I'd be grateful for any suggestions.
I've clicked on the second screen icon at the top left of the filmstrip, so I've got a floating window showing the loupe view of the selected photo.
Both screens are identical - I can't work out how to get the loupe photo to fill my monitor and leave everything else on my laptop.
I'd be grateful for any suggestions.

Hi Judith,
There's normally a keyboard shortcut to change how your laptop uses the external screen.
If you can't find this, then you can change the settings on Windows (assuming you're using Windows?), setting the screen to "Extend" on to the second screen, rather than just duplicating it. Here's a video showing how to change the settings:
Hope this helps, if not, please let us know what version of Windows or laptop you're using?
Thanks
Josh
There's normally a keyboard shortcut to change how your laptop uses the external screen.
If you can't find this, then you can change the settings on Windows (assuming you're using Windows?), setting the screen to "Extend" on to the second screen, rather than just duplicating it. Here's a video showing how to change the settings:
Hope this helps, if not, please let us know what version of Windows or laptop you're using?
Thanks
Josh