Hi Douglas,
There is no built in support for this. Instead, we recommend the use of
a tool such as GNU parallel for performing bulk conversions of .pyfrs
files to .vtu files.
Once converted you should then be able to open up all of the generated
.vtu files in ParaView which will proceed to treat them as a time
series. (The only thing to watch out for here is file naming.)
Regards, Freddie.