Alpha channel should ignore video backgrounds or images so that we can display text with video motion backgrounds on our main screens, then alpha channel text only on our ATEM switchers.

Thanks for requesting this feature. This is something that is on our radar, but we can't comment any further about it at this time.

At this time you'll need to use two computers, one for front of house and the other for your alpha channel (ndi, sdi, hdmi) to the mixer.