Hyperdeck studio controlled by an ATEM 1

Hello,
I'm thinking in buying the ATEM 1 M/E production switcher and outputting to a h264 pro encoder in order to do a video live streaming show.
I would like to be able to lunch movie clips during the show and thought that the HyperDeck Studio might do that.
I wondered if anyone tried to control the HyperDeck from the ATEM 1 through an RS-422 cable?
Is it instant playback?
If this is not possible, what other option do I have to play movie clips during the streaming show?
Thanks for any help!
Sebastian
I'm thinking in buying the ATEM 1 M/E production switcher and outputting to a h264 pro encoder in order to do a video live streaming show.
I would like to be able to lunch movie clips during the show and thought that the HyperDeck Studio might do that.
I wondered if anyone tried to control the HyperDeck from the ATEM 1 through an RS-422 cable?
Is it instant playback?
If this is not possible, what other option do I have to play movie clips during the streaming show?
Thanks for any help!
Sebastian