Scrollview Widget & Scrollto

Hi

Using latest build & none of the documented ways to scroll the scrollview work in the simulator.

Assuming the scrollview is called groupScroll…

Neither of these work

groupScroll:scrollToPosition({    y = 0 })

groupScroll:scrollTo( “top” )

This does work, but cannot adjust the time, it scrolls too slowly

groupScroll:scrollToTop({time=1} )

Can anyone suggest the correct command to make the scrollview go immediately to the top?

thanks