back to school then ...
Still I would have liked an Extension like yours which could manage any form of dynamic dropdown. Because, what I have to do now is: going back to school first and study all this stuff before I can offer this to my client. And this means invest time in studying instead of working.
Because, what I liked in Menu writer was a question like: select vertical or horizontal?
And there should be a further question like positioning the follow-up levels.
Maybe you could take this as a suggestion to further improve CSS menu writer?
Thanks anyway for pointing me into the right direction.