Is there a width or ratio size for custom Hpaned in the .config/terminator/config file for saved layouts?

After setting up a two panes layout and adjusting and saving the layout with different sizes, I notice that the panes reset to 50:50 split. I would like to know if there is a setting to add in the config file to make a ratio of 20:80 or a fixed value like 80, x where x is the remainder of the child0 width size.

Many thanks in advanced,

Jon

[layouts]
  [[a]]
    [[[child0]]]
      position = 2619:43
      type = Window
      order = 0
      parent = ""
      size = 900, 600
    [[[child1]]]
      type = HPaned
      order = 0
      parent = child0
width = <left pane some value> <-----------------------
ratio = 20:80 <-----------------------
    [[[terminal3]]]
      profile = default
      type = Terminal
      order = 1
      parent = child1
    [[[terminal2]]]
      profile = default
      type = Terminal
      order = 0
      parent = child1