IIRC, In the end of porting from my ISY994 to my polISY, after attempting to copy it over, I just printed out all my programs and re-entered them manually into my new polISY box.
However, I had just moved from a larger home to a smaller apartment and my HA needs were much smaller and quite different. I started from scratch using variables for almost all lighting scenes as the operations are much more debuggable, and simpler, to write more complex deviations to the standard trigger on and time off processes.