Hi @slocknar! We realesed collapsible activities to all portals in May 2021. The idea is that you can collapse each individual activity or expand/collapse all activities for quicker scrolling through a record. The collapsed activity shows a preview of the activity.
We do not currently have any plans to allow collapsing of entire months or years. How many years of data are you typically navigating through and in what scenarios are you looking at activity older than a year?