The online documentation讲述了我应该在上面截图的突出显示区域中设置的一组按钮,但显然这些按钮在我的结尾处不存在.

从在线文档：

The Connections toolbar contains the following buttons that let you
interact with the tree:

Create New Connection: starts the connection
wizard to connect to a web server,a site,or an application.

Save Current Connections: saves the connection information for the
current list of connections in the tree.

Up: goes up one level in the hierarchy.

Delete Connection: removes the selected connection in the tree. If you
click this button when you are on a node other than the connection
node,such as a physical folder,the parent connection is removed from
the list.

根据屏幕截图,唯一可用的按钮是“向上”按钮.

如何在我的经理中创建新连接？我是否错过了使用Web平台安装程序安装某个软件包,还是必须在Windows功能中启用某些软件包？