Timer configurable value listWidget

Is it possible to set the time of a timer with a listWidget
Like something below?

{ expire="listWidget="oh-stepper-item" [step="1", min="1", max="25"]m,command=OFF" }    

No and Yes.

No, this is not possible in the manner you have indicated for several different reasons.

Yes, you can build a system where you can control the expire metadata through MainUI widgets: