Hello,

Here are a few screenshots to show the setup of our Demo Slider.

Form:

"Population" Field Storage:

Field Name = city_population (you'll find a ref. below)

Search Type > Button 1:

Search Type > Button 3:

As you can see a 2nd field with the exact same storage "city_population_2" is needed here (you'll find a ref. below)

"Slider" Field: