You can use groups in the product builder to organize your questions.
NOTE
If you are using the Barebones theme, you can use groups to present questions together in your customizer.
In this gaming chair customizer, all questions related to logos and monograms were grouped together:
Creating a group
Click on the + button in the top left part of the screen.
Under Select input type, pick Group.
Hit Create.
Placing existing questions inside a group
From the left side panel, drag and drop your question inside your group.
Adding new questions to a group
From the left side panel
From the left side panel, hover over your group and click on the + button.
From the right side panel
Click on you group
Within the right side panel, next to Group elements, click the + button.