Use the Perspective shortcut bar to quickly access open perspectives.
You can also open a perspective using the Open Perspective button on the shortcut bar. Multiple perspectives can be open, but only one perspective can be active at a time. When you select a perspective from the Perspective shortcut bar, it becomes the active perspective. Any perspective that you open, but do not close, appears on the Perspective shortcut bar.
You can rearrange the order of the perspectives by dragging and dropping the perspective tabs in the shortcut bar.
By default, the Perspective shortcut bar is docked horizontally in the top-right corner. It can also be docked under the main toolbar or vertically to the left of a perspective. Right-click the shortcut bar to change the docking location.