Change line structure

[nikrays]

Change line structure, example:

line_1:
  - power
line_2
  - channel_up
  - info
  - channel_down
line_3:
  - netflix
  - youtube
  - spotify
line_4: slider
line_navigation: touchpad
line_5:
  - return
  - home
  - source
line_6:
  - rewind
  - play
  - pause
  - fast_forward

Thus, how not to get attached to the name of the block, otherwise it gets confusing when you want to do something unique..