Hi Kaphotics, Thank you for following up with the update to the feature request. However, it seems that I did not explain my message in a clear and detail manner. While I played around with PokeGen, I find that PKHeX is missing an important feature that was available in PokeGen.
Below is the explanation of the features that should be included with an image attached as an example.
[seen None]
Clears all checkboxes
[seen All]
Marks the checkbox [seen] and [Languages] for all pokemon
[Caught All Owned]
Checks for pokemon in storage boxes and party and marks the checkbox [seen] [Caught] and [Languages] for all owned pokemon
[Caught None]
Clears all [Caught] checkboxes
[Caught All]
Same function as the current [Fill Dex]
I hope this time I can explain the features that should be included into PKHex very clearly.