Callout button smooth scroll

Greetings,

we purchased the Unicon theme and set up a onepager nearly completely. The only thing we can’t figure out is how to make the button in the callout to scroll smoothly. we know you have to add the pagescroll class, but there isn’t a field for it. Basically, we use the Callout as a CtA to get people further down to the contact section. The sudden jump doesn’t look to great.

Ticket