Shopify Translate & Adapt

Edit,
Up to 2 stars because of the reply from the team, thank you.
I believe our case won't be an isolated one, as people who use Traditional or Simplified Chinese all scatter around the globe, so any website that is using Shopify and serving both sides of them at the same time would face the same problem.
======= We appriciate shopify to have their own lanaguage translate app but this mess up our website and setting.
Initially, we were using another app and let the website display English, Chinese Traditional (with /zh-tw) and Chinese Simplified (with /zh-cn) and customers can choose the langauage they want with a selector. Now shopify put all chinese language under /zh only and can only allow us to choose 1 of them as the store language along with English, we understand we can assign Simplified to China, and Traditional to Taiwan but the problem is we serve customers from both side who live here in UK. You just put our hours of work of doing translation into nothing. I sincerely hope you can rectify this asap, thank you.