How to change Shelly1 Timer?

Hello,

I have a Shelly 1, Shelly Motion and a Shelly Button1

I have created a room and a Scene

I have entered Shelly1 url with 0?Turn=on in Shelly Motion and a Shelly Button1

I want to create two scenarios:

Scenarios 1:

Shelly Motion detects motion and sends a signal to Shelly1 to turn on the lamp for 5 minutes (this works fine)

Scenarios 2:

Shelly Motion detects motion and Shelly Button detects a short press and sends a signal to Shelly1 to turn on the light for 15 minutes

When Shelly Motion detector triggers Shelly1 to turn on the light and I short press the Shelly Button1 the timer on Shelly1 returns to 5 minutes.

My question:

How do I change Shelly1 Timer -> Auto off from 5 minutes to 15 minutes in Scenarios 2 after I have short press the Shelly Button1?

Cattips 😁