To make an option required, follow these steps:
- From Shopify's admin, select Apps.
- Select Product Options by Bold.
- Select Options.
- Select Edit next to the option set you would like to change.
- Under "Options", select the Required checkbox next to the option you want to make required.
- Select Save Option Set.
- Add a Tooltip to Product Options
- Change the Order of Product Options
- Customize the Display in Product Options