Trying to loop page header variable (nested)

Hello
I’d like to built a price plan, i try that code with a nested loop, but it seems that i can’t loop inside items. It’s ok with buttons first level.

Any tips ?
-```
title: "Top C"
header: "Lorem ipsum"
subtitle: "Maecenas finibus nulla eu ornare"
visible: true
buttons:
-
description: 'Price Plan 1’
link: '#'
class: ''
price: '79 €’
items:
-
description: ‘desc1’
-
description: ‘desc2’
-
description: ‘desc3’
-
description: 'Price Plan 2’
link: '#'
class: ''
price: '99 €’
items:
-
description: ‘desc1’
-
description: ‘desc2’
-
description: ‘desc3’

----

Your frontmatter (YAMLLint) is invalid, should be:

title: "Top C"
header: "Lorem ipsum"
subtitle: "Maecenas finibus nulla eu ornare"
visible: true
buttons:
  - description: 'Price Plan 1'
    link: '#'
    class: ''
    price: '79 €'
    items:
      - description: 'desc1'
      - description: 'desc2'
      - description: 'desc3'
  - description: 'Price Plan 2'
    link: '#'
    class: ''
    price: '99 €' 
    items:
      - description: 'desc1'
      - description: 'desc2'
      - description: 'desc3'

thanks, i just find out by myself, i was about to post solution, i’m new to grav and bit confuse about indentation, only space (no tabs) etc.
I have to google about YAML

thanks again

Yes, YAML is a bit fickly in that regard.