Add empty webshop page and create config
Create function to quickly add fieldgroup with fields using the array below
$fieldsData = array(
    "negativeStock" => array(
        "type" => "InputfieldCheckbox",
        "name" => "allowNegativeStock",
        "value" => 1,
        "label" => "Allow negative stock",
        "description" => "If you choose this, customers are able to buy products that you don't have enough in stock",
        "attributes" => array(
            "checked" => empty($data["allowNegativeStock"]) ? "" : "checked"
        )
    )
);