Update time on all open displays

PI Vision has finally solved the pesky process control system (PCS) HMI limitations. By replicating PCS graphics into PI Vision, you can effectively turn anyones web browser into a read-only OIT... which means we can have many tabs (i.e. displays) open in one browser. Can we find a way to update all the tabs (i.e. displays) that are open in the browser for a specific time? For example, if i have a transfer tank, centrifuge, and receiving tank displays open in 3 separate tabs, is there any easy way to update the time on all 3 graphics to a specific date (for example 01-Jan-20 00:00). Since all 3 systems were in service in unison, we need to see them stride for stride. Very useful for troubleshooting an issue in the past.