Where did the "turn off after x minutes" setting go?

[JDRoberts]

@bravenel has just posted code to do this. look at post 20 in the following:

Ability to turn off lights after x minutes of no motion is missing

Prior to the new 2.0 app I was able to set certain light switches to turn off after no motion was detected for a certain amount of time. The new Smart Lights app can only turn off lights right away when the motion stops, with no delay. How do I get this functionality back?