In Pokémon Legends Arceus, the player is able to give or loan mons to the NPCs, and those mons will show up in the overworld.
Even for permanent gifts, the data of the given mons are actually fully intact.
This plugin allows you to modify the mons that were given/on loan.
How to use
Put the plugin into the plugins folder in your PKHeX directory, then access it from the Tools menu.
Note: Win 10 might block DLL files downloaded from the internet. In that case right click the plugin file, go to properties and check "unblock" (as seen here).
[You may have to unblock, reblock, then unblock again to get it to work]
Example of how to unblock:
Used to modify the mons in NPC/farm block in the save.
Always back up your saves before you perform any edits.
Pokémon Legends Arceus
For help and bug reporting, go here.
Kaphotics for PKHeX.