List reports: Dynamic tooltip text

List reports: Dynamic tooltip text

My application tracks orders in various stages of fulfillment.  I use decision box fields to identify when a particular stage has been completed and an associated date-time field that contains when the stage was completed.  In my list report I display all fulfillment stages left-to-right so the user can easily visualize what stage the order is in. 

Is there a way that I can dynamically set the value of the decision box's tooltip text so it displays the date-time value of when that stage was completed?