<fieldset>
    <legend>{{ localize "DND5E.SAVE.FIELDS.save.label" }}</legend>
    {{ formField fields.save.fields.ability value=source.save.ability options=abilityOptions rootId=@root.partId }}
    {{#with fields.save.fields.dc.fields as |fields|}}
    {{ formField fields.calculation value=../activity.save.dc.calculation options=../calculationOptions
                 rootId=@root.partId }}
    {{#if ../activity.save.dc.calculation}}
    {{ formField fields.formula name="" value=(localize "DND5E.SAVE.FIELDS.save.dc.DefaultFormula") disabled=true
                 rootId=@root.partId }}
    <input type="hidden" name="save.dc.formula" value="{{ ../source.save.dc.formula }}">
    {{else}}
    {{ formField fields.formula value=../source.save.dc.formula rootId=@root.partId }}
    {{/if}}
    {{/with}}
</fieldset>
