How can I display product variant thumbnails in a grid on my Envy theme?

[creativeknitter]

Hello! I have a change I want to implement on my website but it's not a default option in the Envy theme I'm using.

A lot of my products have multiple variants and I would like a grid of all of the thumbnails to show under the main image photo, rather than the carousel that needs to be scrolled through to see the images. I need customers to be able to see all of the color options together in a grid formation rather than having to scroll back and forth through the current layout.

Does anyone know how I can make this change? My current options are a row of carousel of photos under, or to the left or right of the main image.

Thanks!