Smart Lighting time off issue

I set up an automation within Smart Lighting which works as follows.

  1. When motion is detected
  2. Turns on strip light
  3. waits a period of time and turns off( that is where I need assistance) How do i use 30 seconds, as the shutoff delay? Is one minute the smallest time allowed?

i rember seeing a custom option (new app)

New app is not an option for me at this time as I have way to many custom DTHs and automations.