Translations:F.A.Q. - Frequently Asked Questions/9/en
All notifications a shown in one column, in which you can switch between different types of notifications. The column's top right corner opens its settings, where can optimize your notification column to your individual needs.
As with Tweetdeck, if the number of columns exceed your display's width, you either need to scroll left and right or zoom out, until all columns fit again into your screen.