Colums to the left and right of main menu item?

Hi
Thank you for this great extension!

I wonder, when I create colums below the main menu item, how can I make the colums also go to the left?
At present they go straight down from the main menu item and to the right, some colums actually disappear outside the screen.

I see in your Demo/ Demo with slide effect with the theme css3megamenu included/ Dummy link 2 with plugin params does what I want.

Do I need the plugin for this?

Hi
you can do it in css by adding a negative margin-left on div.floatck, or use the plugin params to set it in the menu item params
CEd

I've bought the params plugin, but I don't understand where I make these settings, can you please help me?

go in the parent menu item link, edit it and in the maximenu params submenu options you can set the horizontal offset (give a negative value there) and you can set the submenu width too