That's just using things that are available in game (via save file editing), making Pursuit selectable would require outright editing the actual game code.Apologies if this is not the right thread, this will be my last post about Pursuit in this thread if this is the case. The move still is in the code unless i understood something wrong (datamine), like it was in SS.
I still would like to have definitive confirmation (not through guesswork) that even through hacking there is no way to make use of pursuit, especially since other requests involving hacking were answered in this thread (Examples: Battle bond, Arceus, sheer force + order up). There is no guarantee NatDex would take this information into account, but this is still something I would like to know if it is possible.