discourse-placeholder-theme-component/javascripts/discourse/templates/modal/discourse-placeholder-builder.hbs

{{#d-modal-body
  title=(theme-prefix "builder.title")
  class="discourse-placeholder-builder"
  style="overflow: auto"
}}
  <form>
    <div class="control">
      <span class="label">
        {{theme-i18n "builder.key.label"}}
      </span>
      <div class="input">
        {{input
          value=(readonly form.key)
          input=(action (mut form.key) value="target.value")
        }}
      </div>
      <p class="description">{{theme-i18n "builder.key.description"}}</p>
    </div>

    <div class="control">
      <span class="label">
        {{theme-i18n "builder.description.label"}}
      </span>
      <div class="input">
        {{input
          value=(readonly form.description)
          input=(action (mut form.description) value="target.value")
        }}
      </div>
      <p class="description">
        {{theme-i18n
          "builder.description.description"
        }}
      </p>
    </div>

    <div class="control">
      <span class="label">
        {{theme-i18n "builder.values.label"}}
      </span>
      <div class="input">
        {{multi-select
          valueProperty=null
          nameProperty=null
          value=form.values
          content=form.values
          options=(hash allowAny=true placementStrategy="absolute")
          onChange=(action (mut form.values))
        }}
      </div>
      <p class="description">{{theme-i18n "builder.values.description"}}</p>
    </div>
  </form>
{{/d-modal-body}}

<div class="modal-footer discourse-local-dates-create-modal-footer">
  {{d-button
    class="btn-primary"
    action=(action "insertPlaceholder")
    label=(theme-prefix "builder.insert")
  }}
</div>