Hi
You doesn't need to have a separated menu to show list of menu items it submenu while hovering. You can simply set this as subelements for this prior DOS (I believe) option. Than set for example 3 subelements (one for each column, 3 in this example) which would be a name of the column (You can hide this title, but it has to be there). Than simply add subelements into this level2 submenu.
You can also use a mod_menu module and show menu with it. For that You need to do the above but instead of adding level2 subelements You need to select to display a module in this place with a name specified. Than in module list attach a module to the same module position You have mentioned.
I understand I can be complicated, so please try with above and write to my mail directly (po Polsku
). You describe me how You want it to looks like and I'll make it.
Sorry, this is an english base forum we need to use it so all users may benefit from solutions we may achieve.