2 questions regarding "legal" edits (e.g. Hordes in Friend Safari / Level curve)

[Yeshy]

2 questions, inspired by my desire for legal(ish?) ROM Hacks/mods (not dissimilar to Dio Vento's Legit/Lite builds) and NoraInTheFuture's Gen 6 horde mods

 

Would it be possible to enable PokeRadar and/or Horde Encounters in the Friend Safari in X/Y? (with the same caveat as the horde mod that you would have to manually revert HA Pokemon)
 

Since DexNav can raise the levels of Pokemon by upto 19 (excl. the 10 lvl boost) would it be legal to set the wild Pokemon upto 19 levels higher (and therefore have a level curve accordingly, while still being legal)? You would have to somehow disable further leveling viaDexNaving though?

I would imagine there are exceptions here obviously. The major problem here being that the Pokemon should have Egg Moves but won't (and won't be able to remember them). But I guess if nothing checks for this (or it gets reset when transferred) then it's okay? I did some testing and it seems at least PKSM's checks count it as legal regardless

 

I felt like I had something else to ask, maybe about USUM but I forgot.

 

Maybe DS related, but enabling NatDex/dual slot/outbreak encounters in Platinum from the start? Dio Vento's ORAS hacks do that (e.g. Zorua on the first route). Or because you can script on NDS, a NPC to legalize Pokemon in the game itself? 

Edited November 18 by Yeshy
legal-ish