Choose a specific folder in the old save-file dialog when using libraries?

Choose a specific folder in the old save-file dialog when using libraries?

There are other similar questions, but I don't see this specific one.
In Windows 7, I am having trouble selecting a specific folder that is
included in a library. Say for example that Library "Test" contains three
folders: c:\test1, c:\test2, and c:\test3, and there is a file test1.txt
in c:\test1. Notepad++ uses the following Save As dialog box:

Since there are no files in test2 or test3, they are not displayed, so I
can't find any way to then save the file in either of c:\test2 and
c:\test3 using the library model. Is there a way to choose from the
folders included in the library, without having to navigate to the folder
explicitly?
Also, is there a better way to navigate to the correct folder if it is
displayed, as below, than right-clicking on it or a file in it, clicking
"Select file location," and then editing the filename?