Alright so this is just an idea and I wouldn't be surprised if someone has mentioned this before, nor would I be surprised if this just isn't possible.
BUT, it'd be really cool, if a version of the Pokemon Homebrew Bank like you have here was capable of accessing our Pokemon save files from all generations of Pokemon we may be playing on our 3DS. I know that the creator has a Pokemon Homebrew Bank specifically for the VC versions of get 1, which honestly makes me question if this is possible, as I'd have thought to reduce redundancy, the creator would have made an all-in-one Pokemon Homebrew Bank that can hand both gen 6 and the gen 1 VC titles in the same app. IF that is possible (which again, I'm doubtful of), then I'm suggesting you do that, but then try and take its step further where you can browse for your GBA VC-injects of Pokemon game's save files in your 3DS and access your pokemon in those titles, as well as accessing the save file in any of your official DS Pokemon games if the cart is in the slot, or navigating to your DS Pokemon save files in your DS Flashcard (if that SD card is unaccessible, perhaps you'd have to copy your save file from that SD card to the SD card in your 3DS).
If that were possible, it'd be pretty awesome to have a homebrew bank that can effectively manage all the Pokemon you have across all generations of Pokemon in one device.