Back to [Storefront] Redirect for multiple different storefronts.

Hi! My site has 3 separate storefronts and I'm trying to figure out a way to make the "Back to [Storefront Name]" link direct to each separate storefront. I found a post from @tuanphan explaining how to inject code to make that link direct back to a single storefront, but I'm curious if there's a way to do 3? 

To give more details, my 3 storefronts are:

1. Samples (https://www.lifefloor.com/storefront)
2. Landing Pads (https://www.lifefloor.com/landing-pads)
3. Merchandise (https://www.lifefloor.com/order-brand-merchandise)

I want each product in each collection to only go back to the storefront that it is native on, not to the basic product gallery page.

Example: I want https://www.lifefloor.com/order-samples/color-box product page to link back to https://www.lifefloor.com/storefront instead of https://www.lifefloor.com/order-samples where it says "<- Back to Order Samples".

Thanks in advance!

Remove code in Code Injection

Copy code to 3 Page Headers: Storefront, Landing Pads, Order Brand Merchandise