To be specific, the add-on takes advantage of 360 R2 functionality of TecUtilDataSetAddZoneX() in that you can specify a zone number that already exists as a method of replacing an existing zone.
I've posted a "fix" that instead of replacing the zone in the time series frame it creates a new zone. So, the add-on will collect the data from each probe to a different zone. The add-on then updates the zone number for the appropriate XY mapping.
Really this behavior should probably be an option on the menu (and the original behavior should only be available for 360 R2 or later).
See http://www.tecplottalk.com/addons/times ... pliant.cpp (right-click, Save As)
You should be able to do a diff of the two .cpp files and see what I changed.
P.S. I've updated the add-on page regarding the $!LoadAddon command.