putting vertical scrollbar on a column that has more content that fits the page

In this snippet http://webix.com/snippet/9328012e the first column only shows part of its content. if you collapse first two widgets you see that there more of them. How can i make this column scrollable

Use scrollview

http://webix.com/snippet/bfb6c661

Maksim, thanks again for your incredibly quick responce. I am sorry i did not make it clear in my original post that i would like the right pane to have its own scrollbar if needed. Similar to the way left menu pane behaves in http://webix.com/demos/admin-app/#!/app/dashboard if you make the window height small enough (or zoom in). There you see a funky scrollbar that allows scrolling both panes independently

In case of admin app - left panel contains a scrollable list.
You can use two scrollviews

http://webix.com/snippet/088a14c0

and for a better look, you can enable CustomScroll

http://webix.com/snippet/d4b7f306

I will use the first example.

although second one does look nice and original it is not immediately intuitive and the is something wrong z-index order or something like that : the headers overlap the scroller

Thanks