>>47543122All that you need to do is take the files from the LGPE rom and put them into the SWSH rom.
Yes anyone can port any model to any engine but this is even more simple then that, a feat that wouldn't be possible if they didnt use the same engine.
Further proof would be the Sword prototype having loads of leftovers from LGPE, and even the final games having some.(Pikachu and Eevee interacting data mostly)
>>47543131Gamefreak shut it down.
>>47543132Read above point