for those that are wanting to make all the electrical shit Default to save you and your players some Scrap, i managed to figure it out after some time, just add this to your oxide/config/BlueprintManger.json file

{
  "Settings": {
    "Default blueprints": [
      "electric.blocker",
      "electric.doorcontroller",
      "electrical.branch",
      "electric.solarpanel.large",
      "electric.laserdetector",
      "electrical.memorycell",
      "electric.orswitch",
      "electric.pressurepad",
      "electrical.combiner",
      "electric.battery.rechargable",
      "electric.splitter",
      "electric.switch",
      "electric.timer",
      "electric.xorswitch",
      "electric.battery.rechargable.small",
      "electric.andswitch",
      "electric.audioalarm",
      "electric.counter",
      "electric.flasherlight",
      "electric.hbhfsensor",
      "electric.battery.rechargable.large",
      "electric.laserdetector",
      "electric.random.switch",
      "electric.rf.broadcaster",
      "electric.rf.receiver",
      "electric.simplelight",
      "electric.sirenlight",
      "electric.generator.small",
      "generator.wind.scrap",
      "rf_pager",
      "rf.detonator"
    ]
  }
}​

if by chance it wants to reset itself. try putting it in a single line of text and it should format to something like this.

also when you're editing, make sure you oxide.unload BlueprintManager
and once you finish editing oxide.load BlueprintManager

hope this helps! enjoy!

This depends on having a particular permission "blueprintmanager.config". Whatever is in the config file will apply for anyone with the permission. 

Can't get this to work, applied the permission for config access. Console reports adding config list for blueprint manager. But BP's arent showing up in crafting window

Merged post

keeps wiping config file, but it is a valid json