While working with file1.c, I've entered netrw, typing :edit .
In the netrw window, the example directory list are shown like this.
folder2/
| folderAA/
| | file1.c
| | file2.c
In that, I typed -
to view parent window, and the directory view are changed like this.
folderA/
| folder1/
| folder2/
| | folderAA/
| | | file1.c
| | | file2.c
Now I have no need to see folderA. But how can I hide that folderA? I can't find command. Please help!