v1.6 - topmenu - changing sub-categories visual

[pascuald]

hello

 

i am woking on v1.6  et have a problem with topmenu module

i would like to have the sub-categories presented like the sub-sub categories (vertical list)

 

I had to built a sub category "Original" to have something approaching but for several reasons it is not the solution… see the pict

 

An idea, a solution ????

 

Regards

Pascual