The P4 V2.0 is is pretty much the same as the Mavic 2. If the Mavic 2 done, the P4 pro V2.0 is done too.
The v01.00.22.00 ist hacked allready (NFZ and high Limit):Download Link
, Need flashed with DUMLdore.
FCC mod can done with https://github.com/jkson5/jkson_fcc_mod
If you had Firmware v01.00.50.00 on your bird, dumbdore is blocked.
The v01.00.50.00 Firmware aktivate the identify transponder
I think / hope NLD will support the P4 pro V2.0 with firmware v01.00.15.00 and v01.00.22.00 in next release.