getFormRadioControl (label, input, compact) {
    const el = document.createElement('div')

    if (this.options.custom_forms === false) {
      el.classList.add('form-check')
    } else {
      el.classList.add('custom-control', 'custom-radio')
    }

    el.appendChild(input)
    el.appendChild(label)

    if (compact) {
      if (this.options.custom_forms === false) {
        el.classList.add('form-check-inline')
      } else {
        el.classList.add('custom-control-inline')
      }
    }

    return el
  }
Stack the radios from getFormRadio()/getFormRadioLabel()