Thanks for the follow up. Unfortunately, I cannot share the Webflow build as it is for a corporate entertainment media project that I'm working on. However, let me see if I can provide more clarity on the issues.
Normally, you can assign scroll trigger interactions on page elements that occur as they come into the viewable area. No button clicking is applied for this user flow. Just as in this tutorial on the Webflow help pages: https://help.webflow.com/article/how-to-set-up-a-scroll-trigger-interaction
Scroll trigger assignment does not work while using a fixed side bar layout: https://help.webflow.com/video-tutorial/fixed-sidebar-layouts
On the scrollable 'Main Content' side with 'Overflow Scroll' enabled, the scroll trigger interaction doesn't activate. I wanted to have a photograph appear with a y-axis movement and opacity 0-100%ease in. I applied the same parameters as shown in the tutorial videos. Only after disabling the 'Overflow' selection on the 'Main Content' container does the scroll trigger interaction activate.
Photo displayed in fixed left side bar transitions to another photo once right side 'Main Content' reaches a defined scroll position. Again, no button clicking is applied for this user flow. i.e. Show cast photo shown in left side bar fades to next cast photo once user scrolls past their Bio/Editorial info on right-side main content. Basically, as users read through Actor Bios, the photos automatically transition on left fixed side bar.
Video Clip or Gif activate in fixed left side bar once right side 'Main Content' reaches a defined scroll position. Same thing as above, but this time with an animated gif or video being triggered.
Issue for 2-3
Cannot find way to create an on-scroll interaction connecting the left fixed side bar content to the scroll action on the right main content well.
Hopefully this can clarify my specific questions. Thanks again for any assistance you can provide.