2 column

Check out this topic about multi-columns

Thank you for Info, but w′hen i copy the “ul” style in my theme style.cc it is for all ul tags so my navigation is not working – is there another way?

You may specify the class and styles will be applied only for page-list sections.
Something like this: ul.page-list {/*css styles*/}

or like this: div.page-list-ext {/*css styles*/}

I added columns feature.

Update your Page-list plugin from WordPress admin dashboard and you may use it like this:

[pagelist class="page-list-cols-3"]
[pagelist_ext class="page-list-cols-3"]

The columns feature works in modern browsers and IE10+.