China’s sovereign digital currency, known as e-CNY, is on track to achieve greater exposure in more cities across the mainland, as leading domestic mobile payments providers Alipay and WeChat Pay install new features to support its wider roll-out. Alipay, operated by financial technology giant Ant Group, announced on Thursday that its app has added a button that enables users to search for and download the official e-CNY wallet within its platform. By opening an account using the same phone number associated with Alipay, users can make purchases with e-CNY on the app. It also said that nearly 6 million digital…