No you can't. I'd like to see the video you mention however my first guess is they're not running deviation but a fully custom FW.
The BIG issue with the Devo 7 is that the display isn't a dot matrix, it's segmented LCD so Deviation can't draw on it...
I've actually been talking to (sort of helping) a guy on RCG try to do something similar and the video you mention could potentially be a big help, I've never seen it though, do you have a YT link?