Disclosed are systems, methods, and computer-readable storage media for enhancing event summaries of synced online content management system interactions. Users can identify one or more of the collapsed events markers that have pointers to the original, uncondensed, event markers. Upon identifying the one or more collapsed event markers, users can add additional data, via the pointers, to the original, uncondensed, event markers that were used to generate the collapsed event marker. The content management system can then perform a new analysis of the shared dataspace, analyzing the event markers using pre-existing data and the newly added data to create additional collapsed event markers, modify previously generated collapsed event markers, or remove/replace collapsed event markers. These enriched collapsed event markers can then newly presented to the user.