Only the options within an option set can be rearranged. You're not able to change the order of option sets, as they should only be applied to one product at a time.
Product Options allows you to adjust the way that your options are shown to your customers on the product page. To change the order of options, please follow these steps:
- From Shopify's admin, select Apps.
- Select Product Options by Bold.
- Select Options.
- Select Edit next to the Option Set.
- Select the square on the left edge of the option.
- Drag it up or down in the "Options" list.
- Select Save Option Set.