How to preview contents of TabWidget in graphical designer of Android studio

How to view other tab host in Android studio designer??

The way to preview is using component tree in a tab design of the xml file.

1. Expand tabhost
2. Select the tab you wish to view/edit
3. Drag that tab to becomes the first tab element under tab content
4. The view will update to show the first tab element.
5. After finish editing, re-order the tabs in the way you wanted