Autocomplete file names when opening an existing project

Hi,

Whenever I open an existing project in PyCharm Professional for Windows,

there's no auto completion for directory names with the tab key or other ways.

My options are to manually type the full path without a single error or to click and scroll through the

directory tree. Since auto completion of file names works great within a project, is there

something that would allow opening projects more easily?

I'd like to tab into the next level directory and also have the directory open immediately in the browser when it's selected.