观看以下视频，了解如何将本站安装为Web应用到您的主屏幕。
注意： 此功能可能在某些浏览器中不可用。
This update now allows you to use user groups as criteria. If you enable a reaction for a user group, everyone in that group will have access to that reaction, regardless of the context. (The criteria are not “AND” but “OR”)
