Device tracker... cannot rename devices :(

i have enabled device tracking but only the IP addresses are showing.
i see known_devices.yaml has been created. but many attempts to rename to a friendly name has failed. please help as im using 47.1
below is an example of a device. in the yaml file

  hide_if_away: false
  mac: 00:95:69:09:FF:FF
  track: true
  vendor: LSD Science and Technology Co.,Ltd.

name is showing up as in States. would be great if i can change it to IP Camera

What tracker were you using?

in my config yaml file, i have

  - platform: actiontec
    username: admin
    password: xxxxxx

Have you tried

      friendly_name: here?

in Dev States, i see:

so in my config yaml file, i have:
friendly_name: ad blocker

i see this error in the log:
2017-07-04 18:32:44 ERROR (MainThread) [homeassistant.loader] Unable to find component customize
2017-07-04 18:32:44 ERROR (MainThread) [homeassistant.setup] Setup failed for customize: Component not found.


First of all, you need to add complement customize in configuration.yaml file, just below of time_zone. like:

  time_zone: XXXX

  customize: !include_dir_merge_named customized

Then in configuration folder, create a folder called customized, and inside this folder, create a file called: device_tracker.yaml

In this file, you need to add like this:

  icon: mdi:camera
  friendly_name: ad blocker

Hope this can help in my case works…

this works!
thank you so much for your help! the online document was not very specific.
also, not sure why winscp denied me creating a folder. i had to use putty then typed in: sudo mkdir customized