bol/templates/roll/roll-dialog-attribute.hbs

<form class="skill-roll-dialog">
  <h2 class="dialog-roll-title">{{title}}</h2>

  <div class="property flexrow">
    <label class="property-label">{{localize "d6M"}}</label>
    <select id="d6Malus" value="d6Malus">
      {{#select d6Malus}}
      <option value="0">0</option>
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
      <option value="4">4</option>
      {{/select}}
    </select>
  </div>

  <div class="property flexrow">
    <label class="property-label">{{localize "d6B"}}</label>
    <select id="d6Bonus" value="d6Bonus">
      {{#select d6Bonus}}
      <option value="0">0</option>
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
      <option value="4">4</option>
      {{/select}}
    </select>
  </div>

  <div class="property flexrow">
    <label class="property-label">{{localize "Modifier"}}</label>
    <select id="bonusMalus" value="bonusMalus">
      {{#select bonusMalus}}
      {{{optionsBonusMalus}}}
      {{/select}}
    </select>
  </div>

</form>