We have just seen how to open a perspective inside the current workbench window. We can also open new perspectives in their own window.
The steps for opening a perspective in its own window are identical to opening a perspective in the same window with one minor difference. As you are choosing the perspective (either from the Open Perspective button on the shortcut bar or the Open > Perspective menu) hold down the shift key.
By default, new perspectives are opened in the current window. If the shift key is held down it will open in a new window. You can configure this default behavior using Window > Preferences > Workbench.