If i understand correcty you want to copy the presets into your own unlocked preset file? first of i would start with measuring the device.
1. Use a flat preset (no changes to gain/delay/polarity/eq/phase/x-overs) and store a snapshot of it as reference
2. Open the preset you want to copy and write down the propogational delay for each of the outputs (from input to output of your fft I/O)
3. Now use the transfer function to store snapshots of each output and make sure you set the measurement delay correctly.
4. Create a new preset and start changing stuff output by output until they matchup with what you see in the previously recorded snapshots. (i usually start with gain, then delay, then x-overs, then eq, then allpass and tweak the bunch untill it's good.
For a transfer function to be of any use you really need to align the measurement signal to the reference signal, otherwise the phase display just isn't usable and you are missing vital info.
I hope this helps