FitShow app - how to set incline correctly

Hi there,

I am using a Toputure walking pad in combination with the Fitshow app. The walking pad can be set to have an incline of 7%. However, I dont know how to get the FitShow app to pick up the incline (it is done mechanically only).

I saw that the FitShow app has a visual for displaying the incline (although it is always 0%).
I think that I might burn more calories when running on an inclined pad and want to track that...