6

The prevent menu clutter and to much navigation, if a menu subdirectory only contains another subdirectory, move the content of that directoty to the higher level and do not display the subdirectory (and do not display empty subdirectories either but this is already the case I believe)

eg:
A->a->1
2
B
C


would become:

A->1
2
B
C

(and
A->a
B
would become
B
)