单击您的文件，然后打开右侧窗格(右上角有一个按钮).在那里你会看到身份和类型.在位置下拉菜单下有一个我不确定是什么的小图标.如果单击它，它可以让您选择一个文件.我想这就是你想要的.

Click on your file, and then open the right side pane (there is a button in the top right corner). There you will see Identity and Type. Under the location drop down there is a small icon of I'm not sure what. If you click it, it lets you choose a file. I think that is what you want.