Thank you for the quick reply. To my understanding I now realized i wont be able to do such projects since my 3DS is not in a compatible version where I could use Gateway. I would use Sky3DS but Gateway supports much more things than Sky3DS does. Also, I now understand where to locate and replace files thanks to your response. But in addition to that, what I need is an explanation, or dare I say, tutorial, from start to finish explaining how to do mostly everything. So far, my understanding are miniscule compared to all of you in this thread/forum. To not ask you such a complex task, if you wish to help that is, then all I ask is to be pointed to the right direction. Where to begin, start and understand EVERYTHING that's going on.
Also, another question, could I add the mod mentioned before to my retail game of Pokemon OR with the use of gateway?
Thanks again for the help. And congrats on the amazing work that you've been doing and nonetheless, uploading it without asking much in return. So for that, thank you.