Using the preview

You can see the selected element in the preview. You can zoom in on the preview, pan the preview and display the preview in isometric view. With drawing files and drawings, you can go to Perspective view in the viewport toolbar and select the central projection as well as determine various view types. Click Preview on the View menu to specify whether and where to place the preview.

To turn off the preview, point to Preview on the View menu and click None.
To zoom in on the preview, Use Ctrl + holding down the middle mouse button to bring up the area into which you wish to zoom, or select Zoom Section in the viewport toolbar.
To pan the preview, Move the view by holding down the middle mouse button. The cursor changes to a hand.
To restore the preview to full view, Double-click the middle mouse button in the preview area or select Zoom All in the viewport toolbar.
To display an isometric view, Use View in the viewport toolbar.

Tip: Turn the mouse wheel to enlarge or reduce the area around the cursor.