Hello, 

 I have create a Grid with 2 "FieldLayout", but the second layout appear at the same "X" position than the first level.

Like this :

"Country Music"
"Radio 21"
"Land Radio"

I would like to have a "margin" on the left like this : 

"Country Music"
          "Radio 21"
          "Land Radio"

Also, is there a way to customize the "+" icon ?

Thanks for the help