I currently develop a Process Book Display to compare simulation data and real plant data which are stored in several PI Tags. My problem is that the simulation can be run faster than realtime resulting in a somehow "timely compressed" curve in comparison to the realtime data. If I know how much faster the simulation runs, i.e. I know the realtime factor, then is it possible to manipulate in ProcessBook the timestamps of the Tags to straighten the curve before plotting them? Unfortunately we have to assume that the realtimefactor is not constant, but stored in another PI Tag.