Creating a complex List Model in QML

[pra7]

I am using a ListView to display data. For that I use Component as a delegate and ListModel as the model to create rows in the ListView:

Below image is the use case for the design:

I use a function to create the model based on the data received from the C++. But since rows and columns are dynamic and also each small box as a checkbox to display I am not getting how to populate/create a model for this.

ListModel{
    id:myListModel
}

function createModel(){
    for(var rows = 0 ; rows < 10; rows++)
    {
        ListModel.append({}) //How to add data to model like a group based on the row and col ?
    }
}

As each small rectangle as checkboxes and columns are dynamic how to append data to the ListModel?

Please Suggest.