A computer system can detect a trigger in connection with an activity performed by a service provider, and determine (i) a first content item associated with the detected trigger and a second content item associated with the detected trigger, and (ii) select a set of service parameters relating to a service session of the service provider based on the first content item and the second content item. Additionally, the computer system can obtain feature data of the first content item and the second content item. Based on the feature data of the first content item and the second content item, the computer system can determine that a corresponding graphical representation of the first content item and of the second content item overlap for a given time interval. Based on a set of prioritization rules, the computer system can select one of the first or second content item and generate the corresponding graphical representation of the selected one of the first or second content item for the given time interval.