Hi @ShipStud, thanks for the good question. Right now, it is possible to use interactions to do some nice effects, but only when the element is triggered by a section scroll into view/out of view.
The ability to affect/monitor an element while the page is scrolling was not included to Interactions 1.0 in Webflow (so at the moment, to do this would likely require some custom coding such as jQuery plugin or something like that).
Hi @ShipStud, if you have signed up for the list, you will receive a notification soon, I cannot give you a timeline when you will receive your invite, but it should be coming soon.
Hang in there, Interactions 2.0 is just around the corner.