Documentation for starting/ending at a specified point on the page?

[kaydwithers]

I love this library so much. I'm just having some trouble with the below use case..

I have a few 100vh components that can be swapped in and out. Each has a different animation. I'd like to have the animation begin at the start of a 100vh height component and end at the bottom of the 100vh component, instead of at the start and bottom of the page.

Is it possible to start and end the scroll at a chosen point instead of at the top and bottom of the entire page?

If so, it might be good to add this to the documentation?