So I lost the QR code but I still have the paths on my char. Since I didn't create the path is there anyway to transfer it to one of my extra characters since I lost the link to the QR code
Have you tried displaying it in Able Sisters? I don't know if you are allowed to put patterns that you got from QR codes on display in there, but that is the only possible way to transfer the pattern between characters. Otherwise you'd have to find the QR code again.
Nope there's no way to share paths between characters via the slots that you have open for designs, but you could try displaying them in able sisters. It's worth a try, although it might be a bit of a pain to do that back and forth. Maybe you should just go for a path that only requires two tiles? that's what I have, and it doesn't take up much space so I can use it for other designs as well, and it's very handy for river designs too. I guess you'll just have to stick to using extra characters whenever you have to use a certain path if displaying them in the able sisters isn't a possibility. I wish our characters had so much storage space otherwise my town would look probably nicer then it does now. *sigh*