Artificer and Issues with Unearthed Arcana

Like most of the community I saw the really revamped Articifer and I am really looking forward to playtesting it but for some reason I don't have the option to use UA material with my character builder. I looked at other forum posts and supposedly there is a toggle option for playtest material on the home menu. That post however was from 2018 so I guess that option has been removed, replaced or just straight up removed because I cannot find it anywhere. If anyone has any idea what to do I would greatly appreciate any ideas or tips because I was super excited to playtest the Articifer. 

Thanks

OH! Well that kinda sucks. Thank you for letting me know. I guess it’s back to pen and paper for the time being