微信支付竟然可以遗失提醒，原来微信还有这么多功能！

Group 1 - The core point of the article highlights the advanced features of WeChat, particularly the ability to create personal group chats for better file management and organization [1][2]. - Users can utilize the single group creation feature to avoid clutter in the transmission assistant, making it easier to manage files [2]. - By naming groups as folders and pinning them, users can create a categorized file assistant, enhancing their productivity [3]. Group 2 - The article mentions additional functionalities such as using specific commands in chat to access information quickly, like finding nearby public restrooms [3].