"New file" (shift-F4) function does not work properly when an existing file has been selected. In this case, "Edit file" (F4) is invoked instead. This is happening on new 5.5.2 version but also in previous versions. I think it is a "bug" rather than a feature because often I'got some file selected but I don´t want to edit the file but create a new one. In this situation I have to deselect the file or change the filename that appears. Futhermore, it could be "dangerous" because you could modify an existing file inadvertently.
Francisco J. G.