Opening the Current Folder in a New Main Window

  Choose Open In New Window from the Folder pop-up menu
  to open a new main window.  The folder on which MB3 is
  positioned is opened in the new main window.

  You can perform all Mail tasks in the new main window.

  You can open other drawers and folders, read messages, and
  so on.

  Additional topics:

  *   Folder Pop-Up Menu

  *   Overview of Mail