seperate size chart name and size chart title

Hi, I want to create different size chart for different products. But there is a problem. The size chart name is the same with the size chart title. I want the size chart name diffrent from the size chart title. And the size chart name is only shown for backend. For example, I want every size chart title is “Size Chart” that shown in the product page and the size chart name such as SKU1, SKU2, SKU3 shown on the backend so that we can recognize and assign them to different products.