The audio cursor indicates the current position within an audio file. It's shown in the view as a vertical line running through each channel. It's also shown numerically in the leftmost field of the navigation bar. To move the cursor via the mouse, left-click within the view. It's also possible to move the cursor via the menus or the keyboard:
To move the cursor numerically, left-click in the leftmost field of the navigation bar, type the desired position, and press Enter or Tab. The position must be entered in time format. Note that Find Zero Crossing moves the cursor to the nearest zero crossing, so it's not necessary to do this manually.