1. How does this display show up on windows, is it a second display where my mouse can move over to it or is it completely locked and my mouse can't go to it?

Answer:Two use scenarios related:

A typical(default) scenario is customer plug the screen to PC and then Windows will recognize it as a WinUSB device. Many apps like AIDA64 can directly communicate with this device and render info/chart to. Your mouse will never be able to move over to it in this case. Second scenario, one can install a Windows graphics driver. With the driver installation, the screen will work as a Windows secondary monitor.

2. How to shutoff pre-loaded videos and backlight when PC going to sleep?

Answer:

BeadaPanel will go into photo frame mode if disconnect from AIDA64. In the mode it will automatically play media files preloadded in it's internal storage space. There is a so called software 'BeadaTools' for access of BeadaPanel internal storage. After running that tool, BeadaPanel will appear as a USB memory drive on your PC. You can load/delete those media files on the drive and further more, you can edit it's animation.ini file to configure behavior of photo frame function.