1) Select "Apps" from left-hand menu and click "Shogun Page Builder" from list

2) Click the Product Title for the product being edited

3) Drag and Drop the "HTML" element from the right-hand menu to directly under the price field (the boundary box should appear as the red box in the below image)

4) Enter the following text into the html field:

<p class="affirm-as-low-as" data-page-type="product" data-amount="{{variant.price}}"></p>

5) Click "Save" in the top-right corner and when ready to publish, click "Publish in top-right corner.