I've created a custom product template and assigned this to some other products in my store. However, when navigating to: Online store > Themes > Customize - there is only an option for "Product Page". I want to be able to edit the blocks / sections for the new custom theme.
The new template is called product.custom.liquid and the original is product.liquid. Am I missing something here or is this not possible? I have a "custom information" block that lists additional information about a product type (pictures, description, etc), but this has been applied to the new template. I want to be able to differentiate this.