Eunice here from Shopify, thanks for posting!
This alteration would require some code customization. There a few ways to go about this:
Hire a Shopify Expert
Shopify Experts are trusted, third-party agencies and freelancers who offer services for Shopify merchants. They're experts so you don't have to be.
To browse Experts, or to post a job, head on over to the Shopify Experts website. Here you will connect with Shopify Experts who you can hire for complicated or difficult tasks related to your business. When you contact an Expert, you're not committed to hiring them. You decide whether you want to work with them.
This option I recommend the most, however, there's no harm in trying the alternatives below.
Contact the app developer
App developers usually provide support for their apps, but they usually don't offer customizations. However, by contacting them with your customization request they may be able to provide you with an alternative solution. If you installed the app from the Shopify App Store you'll find the app developer support contact information on the app listing.
Wait for more responses from the Community
We have some amazing Shopify Partners and Experts active in the Community. When they see your post they'll thread their responses below or contact you directly.
I hope this helps guide you in the right direction. If you have any difficulty with the Shopify Experts website let me know here.
Please send me your store URL so I can check and give you the best solution for this case. If your site protects by password, please share it too.