Layout example

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-- src/layout/quest_dialog.lua
-- 
-- WARNING: Do not edit! 
-- This file is auto generated, all changes will be lost.
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local Button = Gui.Button
local Sprite = Display.Sprite
local Group = Display.Group
local Label = Display.Label

local function layout(layer, fontName, fontSize)
    local group = Group {
        layer = layer,
        children = {
            
            Sprite { 
                name = "img_bg", fileName = "yellow_bg.9.png", 
                loc = {0.000000, 12.500000, 0}, 
                width = 287.000000, height = 306.000000, 
            },
    
            Button { 
                name = "btn_back", 
                normalSprite = Sprite("btn_back.png", 37.000000, 37.000000),
                activeSprite = Sprite("btn_back_active.png"),
                loc = {139.000000, 162.000000, 0}, 
            },
    
            Button { 
                name = "btn_quest_2", 
                normalSprite = Sprite("quest_active_bg.png", 68.000000, 68.000000),
                activeSprite = Sprite("quest_active_bg_active.png"),
                disabledSprite = Sprite("quest_active_bg_disabled.png"),
                loc = {0.000000, 45.000000, 0}, 
            },
    
            Button { 
                name = "btn_quest_1", 
                normalSprite = Sprite("quest_active_bg.png", 68.000000, 68.000000),
                activeSprite = Sprite("quest_active_bg_active.png"),
                disabledSprite = Sprite("quest_active_bg_disabled.png"),
                loc = {-86.000000, 45.000000, 0}, 
            },
    
            Button { 
                name = "btn_quest_3", 
                normalSprite = Sprite("quest_active_bg.png", 68.000000, 68.000000),
                activeSprite = Sprite("quest_active_bg_active.png"),
                disabledSprite = Sprite("quest_active_bg_disabled.png"),
                loc = {86.000000, 45.000000, 0}, 
            },
    
            Sprite { 
                name = "img_quest_1", fileName = "quest_bg.png", 
                loc = {-86.000000, 45.000000, 0}, 
                width = 68.000000, height = 68.000000, 
            },
    
            Sprite { 
                name = "img_quest_2", fileName = "quest_bg.png", 
                loc = {0.000000, 45.000000, 0}, 
                width = 68.000000, height = 68.000000, 
            },
    
            Sprite { 
                name = "img_quest_3", fileName = "quest_bg.png", 
                loc = {86.000000, 45.000000, 0}, 
                width = 68.000000, height = 68.000000, 
            },
    
            Sprite { 
                name = "img_timer_bg", fileName = "timer_bg-1.png", 
                loc = {0.000000, -97.500000, 0}, 
                width = 150.500000, height = 52.000000, 
            },
    
            Label { 
                name = "lbl_timer", 
                loc = {25.000000, -106.000000, 0}, 
                width = 122.500000, height = 43.000000, 
                fontName = fontName,
                fontSize = fontSize,
                text = "",
            },
    
            Label { 
                name = "lbl_main", 
                loc = {0.000000, 130.000000, 0}, 
                width = 242.000000, height = 51.000000, 
                fontName = fontName,
                fontSize = fontSize,
                text = "",
            },
    
            Label { 
                name = "lbl_description", 
                loc = {0.000000, -30.500000, 0}, 
                width = 260.000000, height = 73.500000, 
                fontName = fontName,
                fontSize = fontSize,
                text = "",
            },
    
            Button { 
                name = "btn_continue", 
                normalSprite = Sprite("btn_continue.png", 226.000000, 36.000000),
                activeSprite = Sprite("btn_continue_active.png"),
                loc = {0.000000, -69.000000, 0}, 
            },
    
            Sprite { 
                name = "img_icon_complete_2", fileName = "icon_complete.png", 
                loc = {29.500000, 73.500000, 0}, 
                width = 19.000000, height = 19.500000, 
            },
    
            Sprite { 
                name = "img_icon_complete_3", fileName = "icon_complete.png", 
                loc = {116.000000, 73.500000, 0}, 
                width = 19.000000, height = 19.500000, 
            },
    
            Sprite { 
                name = "img_icon_complete_1", fileName = "icon_complete.png", 
                loc = {-56.500000, 73.500000, 0}, 
                width = 19.000000, height = 19.500000, 
            },
    
        }
    }

    return group
end

return layout

The very interesting!
Is there something editor?