This tutorial explains the steps required to add or remove apps Metro Style in Windows 8 Developers Preview. Windows 8 users can access Metro style by clicking the Start button or by pressing the Windows key on the keyboard.
Add Application to Windows 8 Metro Style
Users can add application that are not listed on metro style by following the below mentioned steps.
For example if you want to add Sticky Notes to Metro Style then pick Search from the menu list and in the Search Apps section, enter the app name in the Search text box.
This would display the Sticky notes under the App search Results.
Select Sticky Notes to Pin the application to Windows 8 Metro Style.
Remove Application from Windows 8 Metro Style
If you want to remove any apps from Metro Style then select the app and click the Unpin option available at the bottom.