Sub - Menu height

How to define the submenus to move to the next column? Because my submenu is too long...
In other words - I want to set end of submenu columns and the submenus to move to the next column

Hi elektroresurs!
You can refer the link following:
www.joomlaux.com/document/jux_megamenu/
You find to " How to group menu items into columns"
Best Regards,
Huyen Tran

I want to set END to the first column earlier.
I want to move in the next column "ЛУМИНИСЦЕНТНО"
There is some content that is not showing, because it`s under the bottom left menu "ЛУМИНИСЦЕНТНО".
The menu is bigger than the visible screen.

COME ON !
Is this serious?! No answer for 5 DAYS!

Hi elektroresurs !
I'm sorry for reply late. I was sick, I could not go to office.
You can give account admin of website for me? I check for you.
You can send for me gmail: This email address is being protected from spambots. You need JavaScript enabled to view it. or skype: huyentran0312
Best Regards,
Huyen Tran