Steven Mading, there is no such ability available. Through the Twitch web API, DTV can only see who is in the chat, not who has recently said something. I could make it work, but that'd require a bot to exist in chat, constantly keeping track of who is chatting, which would require much more effort and resources than I'm willing to put into this for such a niche mod.
talung: I am aware of the changes, but only recently got my computer back from shipping (I moved countries) and didn't have the time to update. I'm working on releasing right now. As far as KIS goes, I am sorry this happens, but I cannot spend the time to make DTV compatible with KIS over such a small issue. As a workaround, it may be best to place your items in a separate container or draft the viewers prior to launch (in the Space Center scene) altogether.
Updated!
v2.4.6:
- KSP 1.2.1 compatibility update.
- Added a now required client ID to all Twitch web API requests.