This support article is for an older version of Play for macOS (1.0), which is still available in the App Store. Play 2.0 has an updated interface and new interactions.
To read about actions in Play 2.0, visit this article.
A scroll action is a response to a trigger that affects the scrolled position of a stack or page.
Set Scroll
A Set Scroll action scrolls a stack or page.
Target: Select the object that this action will affect
Type: Choose the way you'll set a stack's scroll position; options are Scroll To, Scroll By, Scrolling, and Scroll To Object (choosing Scrolling lets you turn a stack's Scrolling property on or off)
Scroll Direction: Choose whether your stack should scroll vertically or horizontally
Delay: Set the number of seconds between the trigger firing and the action beginning (Ex. action will occur X seconds after the trigger fires)
Duration: Set the number of seconds the action will take to complete (Ex. action will occur over the course of X seconds)
Easing: Choose the action's easing curve; options are Default, Linear, Ease In, Ease Out, Ease In & Out, or Spring
Scroll To
Unit: Choose between points or percentages
Start & End Scroll: Set the scroll positions for the object to start and finish (Ex. the stack scrolls from point A to point B)
Scroll By
Unit: Choose between points or percentages
Scroll: Set the positive or negative distance the stack should scroll (Ex. the stack scrolls 10%)
Scrolling
Scrolling: Change the stack's Scrolling property to on or off
Scroll To Object
Index: Set the index of the object within the stack that will be scrolled to
Alignment: Choose the alignment of the object that is scrolled to; options include Start, Center, and End
Start Scroll: Choose the scroll's start position