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Need help with designing this timeline in webflow

Hi guys I need help designing this timeline in webflow.

My client needs this timeline to be dynamically generated from CMS.

You can see it live on this link .
I was able to create the design but I do not know how to implement the sliding feature when clicking arrows.

I thought of creating sliding feature by using MOVE internaction when the right or left arrow is clicked but since it is dynamic there’s no way to know how many blocks would it need to move in order to display all items till of of collection list.

Here’s the read only link to my failed attempt project.

project read only link