WoWInterface - Ace3 Select child from group

Hey,

I try to select in lua a child of a group, but I don't find any way to do this.

Here's my interface :

Here's my code to create this page :

Lua Code:

cwTable = {
    name = "Custom Weights",
    type = "group",
    childGroups = "tree",
    args  = {
        templateName = {
            order =  0,
            name = "Template Name",
            type = "input",
            get = function(info, val)  end,
            set = function(info,val) CreateNewTemplate(val); GearHelper.db.profile.weightTemplate = val end,
        },
        Select = {
            order = 1,
            name = "Stats Template",
            type = "select",
            style = "radio",
            values = {
                [1] = "Custom Weights",
                [0] = "Noxxic Weights"
            },
            get = function(info, val)
                if GearHelper.db.profile.weightTemplate == "NOX" then
                    return 0
                else
                    return 1
                end
            end,
            set = function(info, val)
                local currentSpec = tostring(GetSpecializationInfo(GetSpecialization()))
 
                if val == 1 then
                    GearHelper.db.profile.weightTemplate = GearHelper.db.profile.lastWeightTemplate
                elseif val == 0 then
                    GearHelper.db.profile.lastWeightTemplate = GearHelper.db.profile.weightTemplate
                    GearHelper.db.profile.weightTemplate = "NOX"
                    if not GearHelper.db.profile.CW[currentSpec] then
                        GearHelper.db.profile.CW[currentSpec] = GearHelper.db.global.templates[currentSpec]["NOX"]
                    end
                end
            end,
        },
        TemplateSelection = {
            name = "Template to use",
            type = "select",
            style = "dropdown",
            disabled = function() if GearHelper.db.profile.weightTemplate == "NOX" then return true end end,
            get = function(info) return GearHelper.db.profile.weightTemplate end,
            set = function(info, val) GearHelper.db.profile.weightTemplate = val end,
            values = {}
        },
    }
}

Each new group is had dynamically by adding a prefab table like this one :

Lua Code:

local newGroup  = {
        name = val,
        value = val,
        type = "group",
        hidden = function(info) if GearHelper.db.profile.weightTemplate == "NOX" then return true end end,
        args =  {
            Intell = {
                order = 1,
                name = "Intell",
                type = "input",
                get = function(info) return GetStatCW(info, "Intellect") end,
                set = function(info, val) return SetStatCW(info, val, "Intellect") end,
            },
            ...
        }
}

Actually, when I create a new group, the last edited is the one selected. I would like to automatically select the new one when it's created, but I didn't find any one to do this.

Is it even possible without using Ace3 widgets ?

Thanks