Hello Sky,

There is a Scroll Behavior selector under Project Settings -> Layout. You can choose how the slider should behave when the page is scrolled. 

Normal: The slider will be a regular element on the page. It will scroll along with other elements and play animations normally based on your settings.

Sticky: Once the slider reaches the chosen viewport portion, it’ll stick to that location and act as a pinned element until visitors scroll beyond the threshold defined below. Animations are not affected.

Scroll Scene: Acts as the Sticky behavior, but reacts and plays animations by scrolling the page.

You can see a Scroll Scene Template here: https://layerslider.com/sliders/fairy/

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Regardless of the project's scroll behavior, you can add a scroll transition to any layer. For example, if you don't want the slider to "stick" into the viewport but you would like some layers to have a special transition while the page is scrolled.

Check this template with layers using scroll transitions: https://layerslider.com/sliders/sweet-candies/