A collaborative content management system allows users to access collaborative content items. When a client device accesses a shared collaborative content item, the client device displays a portion of the collaborative content item that falls within a viewport. The client application generates a notification count of notification events associated with content that is contained in the collaborative content item and positioned below the viewport, and the client device displays the notification count in a graphical element adjacent to a bottom viewport edge. A similar process generates a second notification count of the notification events associated with content positioned above the viewport and displays a graphical element with the second notification count adjacent to the top viewport edge. The user can iteratively select one of the graphical elements to move the content of the collaborative content item to a portion corresponding to the next notification event above or below the viewport.