UltraStudio Pro Built in Hardware SD Keyer

Hi guys, i see that Ultrastudio Pro got Built in Hardware SD Keyer.
I wonder if it can do live key (i have analog video input and i want another input from RGB - easy worship to be keyed over the video input) and can it be act standalone (keying without computer)
anybody have tried this before ?
I wonder if it can do live key (i have analog video input and i want another input from RGB - easy worship to be keyed over the video input) and can it be act standalone (keying without computer)
anybody have tried this before ?