A tabstrip is a grouping element that can display different application elements on a single screen. A tabstrip consists of one or more pages and each page has a title.
To display a hidden tab page, move the focus to the title of the page and choose Space.
Access
Tabstrips support sequential element navigation. This means that you can move the focus forwards to a tabstrip using Tab or backwards to a tabstrip using Shift + Tab.
Internal Navigation
You can choose Ctrl + Page Down or Ctrl + Page Up to move to the next or previous tab page.