We are aware of some lacking features for Oculus users after the recent controller redesign. Undo and redo is missing, as well as the alternate and smooth button.
We will pump out a new version (edit) asap!
Until then, we have created a temporary branch called "oculustemp" which has the original controller setup, allowing you to undo and redo etc (sorry about that!).
Instructions on how to switch branches can be found here (just pick oculustemp in the pulldown in stead of beta): https://imgur.com/Q5aC80c