i see the list looks like this:

but how does this work? also does it overright the players defults? or add to them?

"Assign custom BP unlocks to various perms (permission, BP List": {
    "customperm1": [
      "rock"
    ],
    "customperm2": [
      "torch"

So... Rock ingame name is the same as its shortname, same with the torch, so does the list need the short? or in game name? :P

also do each new items need new lines? commers? qotations marks?

like:

"customperm1": [

"rock,rock2,rock3"?

"rock,

rock2,

rock3" ?

Hopefully this example helps

"Assign custom BP unlocks to various perms (permission, BP List": {
    "customperm1": [
      "rock","torch","shortnameitem3","shortnameitem4","shortnameitem5","shortnameitem6"
    ],
    "customperm2": [
      "shortnameitem7","shortnameitem8","shortnameitem9"
   ],
 "customperm3": [
      "shortnameitem10","shortnameitem11","shortnameitem12"
   ]
}