Can I test new shipping model on live store without changing the checkout for current customers?

[EricDub]

I want to test different shipping methods for customers so that they have the option between priority express and standard shipping rates but want to test how this will play out before implementing it. Is it possible to test this out on checkout without changing the checkout process for our current customers? 

[ShopDoc]

What do you mean by how it will play out? Are you wanting to see rates?

[EricDub]

I want to know what it will look like on the checkout screen for customers before I add it to the store. Is it possible to see this without making it live on the website?