Fast Bundle has made progress in the volume discount and made it available to define a single purchase option with the quantity of 1.
Now there are two buttons on my page for selling 1 item.
You might notice 2 sets of add-to-cart buttons on your product page. One is your theme's buy buttons and the other is the bundle widget's add-to-cart button.
You can remove the buy buttons of the product page and just use the bundle widget's add-to-cart button even for selling a single item.
How to remove the theme's add-to-cart button
1. Create a new product template
Go to Shopify admin > Online store > Theme > Customize ,
From the top menu, choose "Products"
Create a new template based on the "Default product" template and set a name for it.
2. Hide or Remove the Add-to-Cart Button
Hide or remove the buy buttons for this template and save.
3. Assign the New Template to Specific Products
Go to Shopify admin > Products and choose the product to which you want to apply the new template.
From the "Theme template", assign this new template to this product.
This is what the new design will look like.
4. Change the position of the widget (Optional)
If you don't like the default place for the volume discount bundle widget on the product page, you can change its location.
Fast Bundle Blocks
Use the "Volume Discount Position" block through "Fast Bundle Blocks", to reposition the Volume Discount bundle widget on your page.
Custom Liquid Code
Alternatively, use the following custom liquid code to manually position the widget:
<div class="rbrVolumeContainer"></div>