A quick Google search for how to add a personal PP should turn up the answer. That's what I did when I added one for my ET6. However, I run F360 on Windows so the actual file/folder names are different (even if I could remember...)

At least if you add a PP to the system you can still use it when F360 updates itself - it always looks in the same place. I've added custom threads to my copy and every time it updates, it moves the folder with the thread definitions and loses the files I've added. I must look for a proper fix for that one.