Marker:Zoom View Window

From OptiTexHelpEn

The zoom view window allows specifying a zoom area on the marker. The zoom view window displays the full length marker.

Location

Select the 'Zoom View Window' – pane will open.
Mark a rectangle with the hand cursor to zoom in to that area by holding the mouse left key while dragging the mouse.

1. Zoom rectangle marked in black

2. Marker was zoomed